/*
* Mesa 3-D graphics library
- * Version: 6.3
+ * Version: 6.5.2
*
- * Copyright (C) 2005 Brian Paul All Rights Reserved.
+ * Copyright (C) 2005-2006 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
*/
#include "imports.h"
+#include "context.h"
+#include "program.h"
+#include "prog_parameter.h"
#include "grammar_mesa.h"
-#include "slang_utility.h"
+#include "slang_codegen.h"
#include "slang_compile.h"
#include "slang_preprocess.h"
#include "slang_storage.h"
-#include "slang_assemble.h"
-#include "slang_execute.h"
+#include "slang_error.h"
+#include "slang_emit.h"
+#include "slang_vartable.h"
+
+#include "slang_print.h"
/*
- This is a straightforward implementation of the slang front-end compiler.
- Lots of error-checking functionality is missing but every well-formed shader source should
- compile successfully and execute as expected. However, some semantically ill-formed shaders
- may be accepted resulting in undefined behaviour.
-*/
-
-static void slang_variable_construct (slang_variable *);
-static int slang_variable_copy (slang_variable *, const slang_variable *);
-static void slang_struct_destruct (slang_struct *);
-static int slang_struct_equal (const slang_struct *, const slang_struct *);
-static void slang_variable_destruct (slang_variable *);
-
-/* slang_type_specifier_type */
-
-/* these must match with slang_type_specifier_type enum */
-static const char *type_specifier_type_names[] = {
- "void",
- "bool",
- "bvec2",
- "bvec3",
- "bvec4",
- "int",
- "ivec2",
- "ivec3",
- "ivec4",
- "float",
- "vec2",
- "vec3",
- "vec4",
- "mat2",
- "mat3",
- "mat4",
- "sampler1D",
- "sampler2D",
- "sampler3D",
- "samplerCube",
- "sampler1DShadow",
- "sampler2DShadow",
- NULL
-};
+ * This is a straightforward implementation of the slang front-end
+ * compiler. Lots of error-checking functionality is missing but
+ * every well-formed shader source should compile successfully and
+ * execute as expected. However, some semantically ill-formed shaders
+ * may be accepted resulting in undefined behaviour.
+ */
-slang_type_specifier_type slang_type_specifier_type_from_string (const char *name)
-{
- const char **p = type_specifier_type_names;
- while (*p != NULL)
- {
- if (slang_string_compare (*p, name) == 0)
- return (slang_type_specifier_type) (p - type_specifier_type_names);
- p++;
- }
- return slang_spec_void;
-}
-/* slang_type_specifier */
-void slang_type_specifier_construct (slang_type_specifier *spec)
+/**
+ * Allocate storage for a variable of 'size' bytes from given pool.
+ * Return the allocated address for the variable.
+ */
+static GLuint
+slang_var_pool_alloc(slang_var_pool * pool, unsigned int size)
{
- spec->type = slang_spec_void;
- spec->_struct = NULL;
- spec->_array = NULL;
+ const GLuint addr = pool->next_addr;
+ pool->next_addr += size;
+ return addr;
}
-void slang_type_specifier_destruct (slang_type_specifier *spec)
-{
- if (spec->_struct != NULL)
- {
- slang_struct_destruct (spec->_struct);
- slang_alloc_free (spec->_struct);
- }
- if (spec->_array != NULL)
- {
- slang_type_specifier_destruct (spec->_array);
- slang_alloc_free (spec->_array);
- }
-}
+/*
+ * slang_code_unit
+ */
-int slang_type_specifier_copy (slang_type_specifier *x, const slang_type_specifier *y)
+GLvoid
+_slang_code_unit_ctr(slang_code_unit * self,
+ struct slang_code_object_ * object)
{
- slang_type_specifier_destruct (x);
- slang_type_specifier_construct (x);
- x->type = y->type;
- if (x->type == slang_spec_struct)
- {
- x->_struct = (slang_struct *) slang_alloc_malloc (sizeof (slang_struct));
- if (x->_struct == NULL)
- return 0;
- if (!slang_struct_construct_a (x->_struct))
- {
- slang_alloc_free (x->_struct);
- x->_struct = NULL;
- return 0;
- }
- return slang_struct_copy (x->_struct, y->_struct);
- }
- if (x->type == slang_spec_array)
- {
- x->_array = (slang_type_specifier *) slang_alloc_malloc (sizeof (slang_type_specifier));
- if (x->_array == NULL)
- return 0;
- slang_type_specifier_construct (x->_array);
- return slang_type_specifier_copy (x->_array, y->_array);
- }
- return 1;
+ _slang_variable_scope_ctr(&self->vars);
+ _slang_function_scope_ctr(&self->funs);
+ _slang_struct_scope_ctr(&self->structs);
+ self->object = object;
}
-int slang_type_specifier_equal (const slang_type_specifier *x, const slang_type_specifier *y)
+GLvoid
+_slang_code_unit_dtr(slang_code_unit * self)
{
- if (x->type != y->type)
- return 0;
- if (x->type == slang_spec_struct)
- return slang_struct_equal (x->_struct, y->_struct);
- if (x->type == slang_spec_array)
- return slang_type_specifier_equal (x->_array, y->_array);
- return 1;
+ slang_variable_scope_destruct(&self->vars);
+ slang_function_scope_destruct(&self->funs);
+ slang_struct_scope_destruct(&self->structs);
}
-/* slang_fully_specified_type */
-
-static void slang_fully_specified_type_construct (slang_fully_specified_type *type)
-{
- type->qualifier = slang_qual_none;
- slang_type_specifier_construct (&type->specifier);
-}
+/*
+ * slang_code_object
+ */
-static void slang_fully_specified_type_destruct (slang_fully_specified_type *type)
+GLvoid
+_slang_code_object_ctr(slang_code_object * self)
{
- slang_type_specifier_destruct (&type->specifier);
-}
+ GLuint i;
-static int slang_fully_specified_type_copy (slang_fully_specified_type *x,
- const slang_fully_specified_type *y)
-{
- slang_fully_specified_type_construct (x);
- slang_fully_specified_type_destruct (x);
- x->qualifier = y->qualifier;
- return slang_type_specifier_copy (&x->specifier, &y->specifier);
+ for (i = 0; i < SLANG_BUILTIN_TOTAL; i++)
+ _slang_code_unit_ctr(&self->builtin[i], self);
+ _slang_code_unit_ctr(&self->unit, self);
+#if 01
+ _slang_assembly_file_ctr(&self->assembly);
+#endif
+ slang_machine_ctr(&self->machine);
+ self->varpool.next_addr = 0;
+ slang_atom_pool_construct(&self->atompool);
+ slang_export_data_table_ctr(&self->expdata);
+ self->expdata.atoms = &self->atompool;
+ slang_export_code_table_ctr(&self->expcode);
+ self->expcode.atoms = &self->atompool;
}
-/* slang_variable_scope */
-
-static void slang_variable_scope_construct (slang_variable_scope *scope)
+GLvoid
+_slang_code_object_dtr(slang_code_object * self)
{
- scope->variables = NULL;
- scope->num_variables = 0;
- scope->outer_scope = NULL;
-}
+ GLuint i;
-static void slang_variable_scope_destruct (slang_variable_scope *scope)
-{
- unsigned int i;
- for (i = 0; i < scope->num_variables; i++)
- slang_variable_destruct (scope->variables + i);
- slang_alloc_free (scope->variables);
+ for (i = 0; i < SLANG_BUILTIN_TOTAL; i++)
+ _slang_code_unit_dtr(&self->builtin[i]);
+ _slang_code_unit_dtr(&self->unit);
+#if 01
+ slang_assembly_file_destruct(&self->assembly);
+#endif
+ slang_machine_dtr(&self->machine);
+ slang_atom_pool_destruct(&self->atompool);
+ slang_export_data_table_dtr(&self->expdata);
+ slang_export_code_table_ctr(&self->expcode);
}
-static int slang_variable_scope_copy (slang_variable_scope *x, const slang_variable_scope *y)
-{
- unsigned int i;
- slang_variable_scope_destruct (x);
- slang_variable_scope_construct (x);
- x->variables = (slang_variable *) slang_alloc_malloc (y->num_variables * sizeof (
- slang_variable));
- if (x->variables == NULL)
- return 0;
- x->num_variables = y->num_variables;
- for (i = 0; i < x->num_variables; i++)
- slang_variable_construct (x->variables + i);
- for (i = 0; i < x->num_variables; i++)
- if (!slang_variable_copy (x->variables + i, y->variables + i))
- return 0;
- x->outer_scope = y->outer_scope;
- return 1;
-}
-
-/* slang_operation */
-
-int slang_operation_construct_a (slang_operation *oper)
-{
- oper->type = slang_oper_none;
- oper->children = NULL;
- oper->num_children = 0;
- oper->literal = (float) 0;
- oper->identifier = NULL;
- oper->locals = (slang_variable_scope *) slang_alloc_malloc (sizeof (slang_variable_scope));
- if (oper->locals == NULL)
- return 0;
- slang_variable_scope_construct (oper->locals);
- return 1;
-}
+/* slang_info_log */
-void slang_operation_destruct (slang_operation *oper)
-{
- unsigned int i;
- for (i = 0; i < oper->num_children; i++)
- slang_operation_destruct (oper->children + i);
- slang_alloc_free (oper->children);
- slang_alloc_free (oper->identifier);
- slang_variable_scope_destruct (oper->locals);
- slang_alloc_free (oper->locals);
-}
+static char *out_of_memory = "Error: Out of memory.\n";
-static int slang_operation_copy (slang_operation *x, const slang_operation *y)
+void
+slang_info_log_construct(slang_info_log * log)
{
- unsigned int i;
- for (i = 0; i < x->num_children; i++)
- slang_operation_destruct (x->children + i);
- slang_alloc_free (x->children);
- x->num_children = 0;
- slang_alloc_free (x->identifier);
- x->identifier = NULL;
- slang_variable_scope_destruct (x->locals);
- slang_variable_scope_construct (x->locals);
-
- x->type = y->type;
- x->children = (slang_operation *) slang_alloc_malloc (y->num_children * sizeof (
- slang_operation));
- if (x->children == NULL)
- return 0;
- for (i = 0; i < y->num_children; i++)
- if (!slang_operation_construct_a (x->children + i))
- {
- unsigned int j;
- for (j = 0; j < i; j++)
- slang_operation_destruct (x->children + j);
- slang_alloc_free (x->children);
- x->children = NULL;
- return 0;
- }
- x->num_children = y->num_children;
- for (i = 0; i < x->num_children; i++)
- if (!slang_operation_copy (x->children + i, y->children + i))
- return 0;
- x->literal = y->literal;
- if (y->identifier != NULL)
- {
- x->identifier = slang_string_duplicate (y->identifier);
- if (x->identifier == NULL)
- return 0;
- }
- if (!slang_variable_scope_copy (x->locals, y->locals))
- return 0;
- return 1;
+ log->text = NULL;
+ log->dont_free_text = 0;
}
-/* slang_variable */
-
-static void slang_variable_construct (slang_variable *var)
+void
+slang_info_log_destruct(slang_info_log * log)
{
- slang_fully_specified_type_construct (&var->type);
- var->name = NULL;
- var->array_size = NULL;
- var->initializer = NULL;
- var->address = ~0;
+ if (!log->dont_free_text)
+ slang_alloc_free(log->text);
}
-static void slang_variable_destruct (slang_variable *var)
+static int
+slang_info_log_message(slang_info_log * log, const char *prefix,
+ const char *msg)
{
- slang_fully_specified_type_destruct (&var->type);
- slang_alloc_free (var->name);
- if (var->array_size != NULL)
- {
- slang_operation_destruct (var->array_size);
- slang_alloc_free (var->array_size);
- }
- if (var->initializer != NULL)
- {
- slang_operation_destruct (var->initializer);
- slang_alloc_free (var->initializer);
- }
-}
+ GLuint size;
-static int slang_variable_copy (slang_variable *x, const slang_variable *y)
-{
- slang_variable_destruct (x);
- slang_variable_construct (x);
- if (!slang_fully_specified_type_copy (&x->type, &y->type))
- return 0;
- if (y->name != NULL)
- {
- x->name = slang_string_duplicate (y->name);
- if (x->name == NULL)
- return 0;
- }
- if (y->array_size != NULL)
- {
- x->array_size = (slang_operation *) slang_alloc_malloc (sizeof (slang_operation));
- if (x->array_size == NULL)
- return 0;
- if (!slang_operation_construct_a (x->array_size))
- {
- slang_alloc_free (x->array_size);
- x->array_size = NULL;
- return 0;
- }
- if (!slang_operation_copy (x->array_size, y->array_size))
- return 0;
- }
- if (y->initializer != NULL)
- {
- x->initializer = (slang_operation *) slang_alloc_malloc (sizeof (slang_operation));
- if (x->initializer == NULL)
- return 0;
- if (!slang_operation_construct_a (x->initializer))
- {
- slang_alloc_free (x->initializer);
- x->initializer = NULL;
- return 0;
- }
- if (!slang_operation_copy (x->initializer, y->initializer))
- return 0;
- }
- return 1;
+ if (log->dont_free_text)
+ return 0;
+ size = slang_string_length(msg) + 2;
+ if (prefix != NULL)
+ size += slang_string_length(prefix) + 2;
+ if (log->text != NULL) {
+ GLuint old_len = slang_string_length(log->text);
+ log->text = (char *)
+ slang_alloc_realloc(log->text, old_len + 1, old_len + size);
+ }
+ else {
+ log->text = (char *) (slang_alloc_malloc(size));
+ if (log->text != NULL)
+ log->text[0] = '\0';
+ }
+ if (log->text == NULL)
+ return 0;
+ if (prefix != NULL) {
+ slang_string_concat(log->text, prefix);
+ slang_string_concat(log->text, ": ");
+ }
+ slang_string_concat(log->text, msg);
+ slang_string_concat(log->text, "\n");
+ return 1;
}
-slang_variable *_slang_locate_variable (slang_variable_scope *scope, const char *name, int all)
+int
+slang_info_log_print(slang_info_log * log, const char *msg, ...)
{
- unsigned int i;
- for (i = 0; i < scope->num_variables; i++)
- if (slang_string_compare (name, scope->variables[i].name) == 0)
- return scope->variables + i;
- if (all && scope->outer_scope != NULL)
- return _slang_locate_variable (scope->outer_scope, name, 1);
- return NULL;
-}
+ va_list va;
+ char buf[1024];
-/* slang_struct_scope */
-
-static void slang_struct_scope_construct (slang_struct_scope *scope)
-{
- scope->structs = NULL;
- scope->num_structs = 0;
- scope->outer_scope = NULL;
+ va_start(va, msg);
+ _mesa_vsprintf(buf, msg, va);
+ va_end(va);
+ return slang_info_log_message(log, NULL, buf);
}
-static void slang_struct_scope_destruct (slang_struct_scope *scope)
+int
+slang_info_log_error(slang_info_log * log, const char *msg, ...)
{
- unsigned int i;
- for (i = 0; i < scope->num_structs; i++)
- slang_struct_destruct (scope->structs + i);
- slang_alloc_free (scope->structs);
-}
+ va_list va;
+ char buf[1024];
-static int slang_struct_scope_copy (slang_struct_scope *x, const slang_struct_scope *y)
-{
- unsigned int i;
- slang_struct_scope_destruct (x);
- slang_struct_scope_construct (x);
- x->structs = (slang_struct *) slang_alloc_malloc (y->num_structs * sizeof (slang_struct));
- if (x->structs == NULL)
- return 0;
- x->num_structs = y->num_structs;
- for (i = 0; i < x->num_structs; i++)
- {
- unsigned int j;
- if (!slang_struct_construct_a (x->structs + i))
- {
- for (j = 0; j < i; j++)
- slang_struct_destruct (x->structs + j);
- slang_alloc_free (x->structs);
- x->structs = NULL;
- return 0;
- }
- }
- for (i = 0; i < x->num_structs; i++)
- if (!slang_struct_copy (x->structs + i, y->structs + i))
- return 0;
- x->outer_scope = y->outer_scope;
- return 1;
+ va_start(va, msg);
+ _mesa_vsprintf(buf, msg, va);
+ va_end(va);
+ if (slang_info_log_message(log, "Error", buf))
+ return 1;
+ slang_info_log_memory(log);
+ return 0;
}
-slang_struct *slang_struct_scope_find (slang_struct_scope *stru, const char *name, int all_scopes)
+int
+slang_info_log_warning(slang_info_log * log, const char *msg, ...)
{
- unsigned int i;
- for (i = 0; i < stru->num_structs; i++)
- if (slang_string_compare (name, stru->structs[i].name) == 0)
- return stru->structs + i;
- if (all_scopes && stru->outer_scope != NULL)
- return slang_struct_scope_find (stru->outer_scope, name, 1);
- return NULL;
-}
+ va_list va;
+ char buf[1024];
-/* slang_struct */
-
-int slang_struct_construct_a (slang_struct *stru)
-{
- stru->name = NULL;
- stru->fields = (slang_variable_scope *) slang_alloc_malloc (sizeof (slang_variable_scope));
- if (stru->fields == NULL)
- return 0;
- slang_variable_scope_construct (stru->fields);
- stru->structs = (slang_struct_scope *) slang_alloc_malloc (sizeof (slang_struct_scope));
- if (stru->structs == NULL)
- {
- slang_variable_scope_destruct (stru->fields);
- slang_alloc_free (stru->fields);
- return 0;
- }
- slang_struct_scope_construct (stru->structs);
- return 1;
+ va_start(va, msg);
+ _mesa_vsprintf(buf, msg, va);
+ va_end(va);
+ if (slang_info_log_message(log, "Warning", buf))
+ return 1;
+ slang_info_log_memory(log);
+ return 0;
}
-static void slang_struct_destruct (slang_struct *stru)
+void
+slang_info_log_memory(slang_info_log * log)
{
- slang_alloc_free (stru->name);
- slang_variable_scope_destruct (stru->fields);
- slang_alloc_free (stru->fields);
- slang_struct_scope_destruct (stru->structs);
- slang_alloc_free (stru->structs);
+ if (!slang_info_log_message(log, "Error", "Out of memory.")) {
+ log->dont_free_text = 1;
+ log->text = out_of_memory;
+ }
+ abort();
}
-int slang_struct_copy (slang_struct *x, const slang_struct *y)
-{
- slang_alloc_free (x->name);
- x->name = NULL;
- slang_variable_scope_destruct (x->fields);
- slang_variable_scope_construct (x->fields);
- slang_struct_scope_destruct (x->structs);
- slang_struct_scope_construct (x->structs);
- if (y->name != NULL)
- {
- x->name = slang_string_duplicate (y->name);
- if (x->name == NULL)
- return 0;
- }
- if (!slang_variable_scope_copy (x->fields, y->fields))
- return 0;
- if (!slang_struct_scope_copy (x->structs, y->structs))
- return 0;
- return 1;
-}
-
-static int slang_struct_equal (const slang_struct *x, const slang_struct *y)
-{
- unsigned int i;
- if (x->fields->num_variables != y->fields->num_variables)
- return 0;
- for (i = 0; i < x->fields->num_variables; i++)
- {
- slang_variable *varx = x->fields->variables + i;
- slang_variable *vary = y->fields->variables + i;
- if (slang_string_compare (varx->name, vary->name) != 0)
- return 0;
- if (!slang_type_specifier_equal (&varx->type.specifier, &vary->type.specifier))
- return 0;
- if (varx->type.specifier.type == slang_spec_array)
- {
- /* TODO compare array sizes */
- }
- }
- return 1;
-}
-
-/* slang_function */
-/* XXX mem! */
-static void slang_function_construct (slang_function *func)
-{
- func->kind = slang_func_ordinary;
- slang_variable_construct (&func->header);
- func->parameters = (slang_variable_scope *) slang_alloc_malloc (sizeof (slang_variable_scope));
- slang_variable_scope_construct (func->parameters);
- func->body = NULL;
- func->address = ~0;
-}
+/* slang_parse_ctx */
-static void slang_function_destruct (slang_function *func)
+typedef struct slang_parse_ctx_
{
- slang_variable_destruct (&func->header);
- slang_variable_scope_destruct (func->parameters);
- slang_alloc_free (func->parameters);
- if (func->body != NULL)
- {
- slang_operation_destruct (func->body);
- slang_alloc_free (func->body);
- }
-}
+ const byte *I;
+ slang_info_log *L;
+ int parsing_builtin;
+ GLboolean global_scope; /**< Is object being declared a global? */
+ slang_atom_pool *atoms;
+ slang_unit_type type; /**< Vertex vs. Fragment */
+} slang_parse_ctx;
-/* slang_function_scope */
+/* slang_output_ctx */
-static void slang_function_scope_construct (slang_function_scope *scope)
+typedef struct slang_output_ctx_
{
- scope->functions = NULL;
- scope->num_functions = 0;
- scope->outer_scope = NULL;
-}
+ slang_variable_scope *vars;
+ slang_function_scope *funs;
+ slang_struct_scope *structs;
+ slang_assembly_file *assembly;
+ slang_var_pool *global_pool;
+ slang_machine *machine;
+ struct gl_program *program;
+ slang_var_table *vartable;
+} slang_output_ctx;
-static void slang_function_scope_destruct (slang_function_scope *scope)
-{
- unsigned int i;
- for (i = 0; i < scope->num_functions; i++)
- slang_function_destruct (scope->functions + i);
- slang_alloc_free (scope->functions);
-}
+/* _slang_compile() */
-static int slang_function_scope_find_by_name (slang_function_scope *funcs, const char *name,
- int all_scopes)
+static void
+parse_identifier_str(slang_parse_ctx * C, char **id)
{
- unsigned int i;
- for (i = 0; i < funcs->num_functions; i++)
- if (slang_string_compare (name, funcs->functions[i].header.name) == 0)
- return 1;
- if (all_scopes && funcs->outer_scope != NULL)
- return slang_function_scope_find_by_name (funcs->outer_scope, name, 1);
- return 0;
+ *id = (char *) C->I;
+ C->I += _mesa_strlen(*id) + 1;
}
-static slang_function *slang_function_scope_find (slang_function_scope *funcs, slang_function *fun,
- int all_scopes)
+static slang_atom
+parse_identifier(slang_parse_ctx * C)
{
- unsigned int i;
- for (i = 0; i < funcs->num_functions; i++)
- {
- slang_function *f = funcs->functions + i;
- unsigned int j;
- if (slang_string_compare (fun->header.name, f->header.name) != 0)
- continue;
- if (fun->param_count != f->param_count)
- continue;
- for (j = 0; j < fun->param_count; j++)
- {
- if (!slang_type_specifier_equal (&fun->parameters->variables[j].type.specifier,
- &f->parameters->variables[j].type.specifier))
- {
- break;
- }
- }
- if (j == fun->param_count)
- return f;
- }
- if (all_scopes && funcs->outer_scope != NULL)
- return slang_function_scope_find (funcs->outer_scope, fun, 1);
- return NULL;
-}
-
-/* slang_translation_unit */
+ const char *id;
-void slang_translation_unit_construct (slang_translation_unit *unit)
-{
- slang_variable_scope_construct (&unit->globals);
- slang_function_scope_construct (&unit->functions);
- slang_struct_scope_construct (&unit->structs);
+ id = (const char *) C->I;
+ C->I += _mesa_strlen(id) + 1;
+ return slang_atom_pool_atom(C->atoms, id);
}
-void slang_translation_unit_destruct (slang_translation_unit *unit)
+static int
+parse_number(slang_parse_ctx * C, int *number)
{
- slang_variable_scope_destruct (&unit->globals);
- slang_function_scope_destruct (&unit->functions);
- slang_struct_scope_destruct (&unit->structs);
+ const int radix = (int) (*C->I++);
+ *number = 0;
+ while (*C->I != '\0') {
+ int digit;
+ if (*C->I >= '0' && *C->I <= '9')
+ digit = (int) (*C->I - '0');
+ else if (*C->I >= 'A' && *C->I <= 'Z')
+ digit = (int) (*C->I - 'A') + 10;
+ else
+ digit = (int) (*C->I - 'a') + 10;
+ *number = *number * radix + digit;
+ C->I++;
+ }
+ C->I++;
+ if (*number > 65535)
+ slang_info_log_warning(C->L, "%d: literal integer overflow.", *number);
+ return 1;
}
-/* slang_info_log */
-
-static char *out_of_memory = "error: out of memory\n";
-
-void slang_info_log_construct (slang_info_log *log)
+static int
+parse_float(slang_parse_ctx * C, float *number)
{
- log->text = NULL;
- log->dont_free_text = 0;
-}
+ char *integral = NULL;
+ char *fractional = NULL;
+ char *exponent = NULL;
+ char *whole = NULL;
-void slang_info_log_destruct (slang_info_log *log)
-{
- if (!log->dont_free_text)
- slang_alloc_free (log->text);
-}
+ parse_identifier_str(C, &integral);
+ parse_identifier_str(C, &fractional);
+ parse_identifier_str(C, &exponent);
-static int slang_info_log_message (slang_info_log *log, const char *prefix, const char *msg)
-{
- unsigned int new_size;
- if (log->dont_free_text)
- return 0;
- new_size = slang_string_length (prefix) + 3 + slang_string_length (msg);
- if (log->text != NULL)
- {
- log->text = (char *) slang_alloc_realloc (log->text, slang_string_length (log->text) + 1,
- new_size + slang_string_length (log->text) + 1);
- }
- else
- {
- log->text = (char *) slang_alloc_malloc (new_size + 1);
- if (log->text != NULL)
- *log->text = '\0';
- }
- if (log->text == NULL)
- return 0;
- slang_string_concat (log->text, prefix);
- slang_string_concat (log->text, ": ");
- slang_string_concat (log->text, msg);
- slang_string_concat (log->text, "\n");
- return 1;
-}
+ whole = (char *) (slang_alloc_malloc((_mesa_strlen(integral) +
+ _mesa_strlen(fractional) +
+ _mesa_strlen(exponent) + 3) * sizeof(char)));
+ if (whole == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
-int slang_info_log_error (slang_info_log *log, const char *msg, ...)
-{
- va_list va;
- char buf[1024];
-
- va_start (va, msg);
- vsprintf (buf, msg, va);
- if (slang_info_log_message (log, "error", buf))
- return 1;
- slang_info_log_memory (log);
- va_end (va);
- return 0;
-}
+ slang_string_copy(whole, integral);
+ slang_string_concat(whole, ".");
+ slang_string_concat(whole, fractional);
+ slang_string_concat(whole, "E");
+ slang_string_concat(whole, exponent);
-int slang_info_log_warning (slang_info_log *log, const char *msg, ...)
-{
- va_list va;
- char buf[1024];
-
- va_start (va, msg);
- vsprintf (buf, msg, va);
- if (slang_info_log_message (log, "warning", buf))
- return 1;
- slang_info_log_memory (log);
- va_end (va);
- return 0;
-}
+ *number = (float) (_mesa_strtod(whole, (char **) NULL));
-void slang_info_log_memory (slang_info_log *log)
-{
- if (!slang_info_log_message (log, "error", "out of memory"))
- {
- log->dont_free_text = 1;
- log->text = out_of_memory;
- }
+ slang_alloc_free(whole);
+ return 1;
}
-/* slang_parse_ctx */
-
-typedef struct slang_parse_ctx_
-{
- const byte *I;
- slang_info_log *L;
- int parsing_builtin;
-} slang_parse_ctx;
-
-/* _slang_compile() */
-
-static int parse_identifier (slang_parse_ctx *C, char **id)
-{
- *id = slang_string_duplicate ((const char *) C->I);
- if (*id == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- C->I += strlen ((const char *) C->I) + 1;
- return 1;
-}
-
-static int parse_number (slang_parse_ctx *C, int *number)
-{
- const int radix = (int) (*C->I++);
- *number = 0;
- while (*C->I != '\0')
- {
- int digit;
- if (*C->I >= '0' && *C->I <= '9')
- digit = (int) (*C->I - '0');
- else if (*C->I >= 'A' && *C->I <= 'Z')
- digit = (int) (*C->I - 'A') + 10;
- else
- digit = (int) (*C->I - 'a') + 10;
- *number = *number * radix + digit;
- C->I++;
- }
- C->I++;
- if (*number > 65535)
- slang_info_log_warning (C->L, "%d: literal integer overflow", *number);
- return 1;
-}
-
-static int parse_float (slang_parse_ctx *C, float *number)
-{
- char *integral = NULL;
- char *fractional = NULL;
- char *exponent = NULL;
- char *whole = NULL;
-
- if (!parse_identifier (C, &integral))
- return 0;
-
- if (!parse_identifier (C, &fractional))
- {
- slang_alloc_free (integral);
- return 0;
- }
-
- if (!parse_identifier (C, &exponent))
- {
- slang_alloc_free (fractional);
- slang_alloc_free (integral);
- return 0;
- }
-
- whole = (char *) (slang_alloc_malloc ((strlen (integral) + strlen (fractional) + strlen (
- exponent) + 3) * sizeof (char)));
- if (whole == NULL)
- {
- slang_alloc_free (exponent);
- slang_alloc_free (fractional);
- slang_alloc_free (integral);
- slang_info_log_memory (C->L);
- return 0;
- }
-
- slang_string_copy (whole, integral);
- slang_string_concat (whole, ".");
- slang_string_concat (whole, fractional);
- slang_string_concat (whole, "E");
- slang_string_concat (whole, exponent);
-
- *number = (float) (atof (whole));
-
- slang_alloc_free (whole);
- slang_alloc_free (exponent);
- slang_alloc_free (fractional);
- slang_alloc_free (integral);
- return 1;
+/* revision number - increment after each change affecting emitted output */
+#define REVISION 3
+
+static int
+check_revision(slang_parse_ctx * C)
+{
+ if (*C->I != REVISION) {
+ slang_info_log_error(C->L, "Internal compiler error.");
+ return 0;
+ }
+ C->I++;
+ return 1;
+}
+
+static int parse_statement(slang_parse_ctx *, slang_output_ctx *,
+ slang_operation *);
+static int parse_expression(slang_parse_ctx *, slang_output_ctx *,
+ slang_operation *);
+static int parse_type_specifier(slang_parse_ctx *, slang_output_ctx *,
+ slang_type_specifier *);
+
+static GLboolean
+parse_array_len(slang_parse_ctx * C, slang_output_ctx * O, GLuint * len)
+{
+ slang_operation array_size;
+ slang_assembly_name_space space;
+ GLboolean result;
+
+ if (!slang_operation_construct(&array_size))
+ return GL_FALSE;
+ if (!parse_expression(C, O, &array_size)) {
+ slang_operation_destruct(&array_size);
+ return GL_FALSE;
+ }
+
+ space.funcs = O->funs;
+ space.structs = O->structs;
+ space.vars = O->vars;
+ result = _slang_evaluate_int(O->assembly, O->machine, &space,
+ &array_size, len, C->atoms);
+ slang_operation_destruct(&array_size);
+ return result;
+}
+
+static GLboolean
+calculate_var_size(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_variable * var)
+{
+ slang_storage_aggregate agg;
+
+ if (!slang_storage_aggregate_construct(&agg))
+ return GL_FALSE;
+ if (!_slang_aggregate_variable(&agg, &var->type.specifier, var->array_len,
+ O->funs, O->structs, O->vars, O->machine,
+ O->assembly, C->atoms)) {
+ slang_storage_aggregate_destruct(&agg);
+ return GL_FALSE;
+ }
+ var->size = _slang_sizeof_aggregate(&agg);
+ slang_storage_aggregate_destruct(&agg);
+ return GL_TRUE;
+}
+
+static GLboolean
+convert_to_array(slang_parse_ctx * C, slang_variable * var,
+ const slang_type_specifier * sp)
+{
+ /* sized array - mark it as array, copy the specifier to the array element and
+ * parse the expression */
+ var->type.specifier.type = slang_spec_array;
+ var->type.specifier._array = (slang_type_specifier *)
+ slang_alloc_malloc(sizeof(slang_type_specifier));
+ if (var->type.specifier._array == NULL) {
+ slang_info_log_memory(C->L);
+ return GL_FALSE;
+ }
+ slang_type_specifier_ctr(var->type.specifier._array);
+ return slang_type_specifier_copy(var->type.specifier._array, sp);
}
-/* revision number - increment after each change affecting emitted output */
-#define REVISION 2
+/* structure field */
+#define FIELD_NONE 0
+#define FIELD_NEXT 1
+#define FIELD_ARRAY 2
-static int check_revision (slang_parse_ctx *C)
-{
- if (*C->I != REVISION)
- {
- slang_info_log_error (C->L, "internal compiler error");
- return 0;
- }
- C->I++;
- return 1;
+static GLboolean
+parse_struct_field_var(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_variable * var, const slang_type_specifier * sp)
+{
+ var->a_name = parse_identifier(C);
+ if (var->a_name == SLANG_ATOM_NULL)
+ return GL_FALSE;
+
+ switch (*C->I++) {
+ case FIELD_NONE:
+ if (!slang_type_specifier_copy(&var->type.specifier, sp))
+ return GL_FALSE;
+ break;
+ case FIELD_ARRAY:
+ if (!convert_to_array(C, var, sp))
+ return GL_FALSE;
+ if (!parse_array_len(C, O, &var->array_len))
+ return GL_FALSE;
+ break;
+ default:
+ return GL_FALSE;
+ }
+
+ return calculate_var_size(C, O, var);
+}
+
+static int
+parse_struct_field(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_struct * st, slang_type_specifier * sp)
+{
+ slang_output_ctx o = *O;
+
+ o.structs = st->structs;
+ if (!parse_type_specifier(C, &o, sp))
+ return 0;
+
+ do {
+ slang_variable *var = slang_variable_scope_grow(st->fields);
+ if (!var) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ if (!parse_struct_field_var(C, &o, var, sp))
+ return 0;
+ }
+ while (*C->I++ != FIELD_NONE);
+
+ return 1;
+}
+
+static int
+parse_struct(slang_parse_ctx * C, slang_output_ctx * O, slang_struct ** st)
+{
+ slang_atom a_name;
+ const char *name;
+
+ /* parse struct name (if any) and make sure it is unique in current scope */
+ a_name = parse_identifier(C);
+ if (a_name == SLANG_ATOM_NULL)
+ return 0;
+
+ name = slang_atom_pool_id(C->atoms, a_name);
+ if (name[0] != '\0'
+ && slang_struct_scope_find(O->structs, a_name, 0) != NULL) {
+ slang_info_log_error(C->L, "%s: duplicate type name.", name);
+ return 0;
+ }
+
+ /* set-up a new struct */
+ *st = (slang_struct *) slang_alloc_malloc(sizeof(slang_struct));
+ if (*st == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ if (!slang_struct_construct(*st)) {
+ slang_alloc_free(*st);
+ *st = NULL;
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ (**st).a_name = a_name;
+ (**st).structs->outer_scope = O->structs;
+
+ /* parse individual struct fields */
+ do {
+ slang_type_specifier sp;
+
+ slang_type_specifier_ctr(&sp);
+ if (!parse_struct_field(C, O, *st, &sp)) {
+ slang_type_specifier_dtr(&sp);
+ return 0;
+ }
+ slang_type_specifier_dtr(&sp);
+ }
+ while (*C->I++ != FIELD_NONE);
+
+ /* if named struct, copy it to current scope */
+ if (name[0] != '\0') {
+ slang_struct *s;
+
+ O->structs->structs =
+ (slang_struct *) slang_alloc_realloc(O->structs->structs,
+ O->structs->num_structs *
+ sizeof(slang_struct),
+ (O->structs->num_structs +
+ 1) * sizeof(slang_struct));
+ if (O->structs->structs == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ s = &O->structs->structs[O->structs->num_structs];
+ if (!slang_struct_construct(s))
+ return 0;
+ O->structs->num_structs++;
+ if (!slang_struct_copy(s, *st))
+ return 0;
+ }
+
+ return 1;
}
-static int parse_statement (slang_parse_ctx *, slang_operation *, slang_variable_scope *,
- slang_struct_scope *, slang_function_scope *);
-static int parse_expression (slang_parse_ctx *, slang_operation *, slang_variable_scope *,
- slang_struct_scope *, slang_function_scope *);
/* type qualifier */
#define TYPE_QUALIFIER_NONE 0
#define TYPE_QUALIFIER_FIXEDOUTPUT 5
#define TYPE_QUALIFIER_FIXEDINPUT 6
-static int parse_type_qualifier (slang_parse_ctx *C, slang_type_qualifier *qual)
-{
- switch (*C->I++)
- {
- case TYPE_QUALIFIER_NONE:
- *qual = slang_qual_none;
- break;
- case TYPE_QUALIFIER_CONST:
- *qual = slang_qual_const;
- break;
- case TYPE_QUALIFIER_ATTRIBUTE:
- *qual = slang_qual_attribute;
- break;
- case TYPE_QUALIFIER_VARYING:
- *qual = slang_qual_varying;
- break;
- case TYPE_QUALIFIER_UNIFORM:
- *qual = slang_qual_uniform;
- break;
- case TYPE_QUALIFIER_FIXEDOUTPUT:
- *qual = slang_qual_fixedoutput;
- break;
- case TYPE_QUALIFIER_FIXEDINPUT:
- *qual = slang_qual_fixedinput;
- break;
- default:
- return 0;
- }
- return 1;
+static int
+parse_type_qualifier(slang_parse_ctx * C, slang_type_qualifier * qual)
+{
+ switch (*C->I++) {
+ case TYPE_QUALIFIER_NONE:
+ *qual = slang_qual_none;
+ break;
+ case TYPE_QUALIFIER_CONST:
+ *qual = slang_qual_const;
+ break;
+ case TYPE_QUALIFIER_ATTRIBUTE:
+ *qual = slang_qual_attribute;
+ break;
+ case TYPE_QUALIFIER_VARYING:
+ *qual = slang_qual_varying;
+ break;
+ case TYPE_QUALIFIER_UNIFORM:
+ *qual = slang_qual_uniform;
+ break;
+ case TYPE_QUALIFIER_FIXEDOUTPUT:
+ *qual = slang_qual_fixedoutput;
+ break;
+ case TYPE_QUALIFIER_FIXEDINPUT:
+ *qual = slang_qual_fixedinput;
+ break;
+ default:
+ return 0;
+ }
+ return 1;
}
/* type specifier */
#define TYPE_SPECIFIER_STRUCT 22
#define TYPE_SPECIFIER_TYPENAME 23
-/* structure field */
-#define FIELD_NONE 0
-#define FIELD_NEXT 1
-#define FIELD_ARRAY 2
-
-static int parse_type_specifier (slang_parse_ctx *C, slang_type_specifier *spec,
- slang_struct_scope *structs, slang_variable_scope *scope, slang_function_scope *funcs)
-{
- switch (*C->I++)
- {
- case TYPE_SPECIFIER_VOID:
- spec->type = slang_spec_void;
- break;
- case TYPE_SPECIFIER_BOOL:
- spec->type = slang_spec_bool;
- break;
- case TYPE_SPECIFIER_BVEC2:
- spec->type = slang_spec_bvec2;
- break;
- case TYPE_SPECIFIER_BVEC3:
- spec->type = slang_spec_bvec3;
- break;
- case TYPE_SPECIFIER_BVEC4:
- spec->type = slang_spec_bvec4;
- break;
- case TYPE_SPECIFIER_INT:
- spec->type = slang_spec_int;
- break;
- case TYPE_SPECIFIER_IVEC2:
- spec->type = slang_spec_ivec2;
- break;
- case TYPE_SPECIFIER_IVEC3:
- spec->type = slang_spec_ivec3;
- break;
- case TYPE_SPECIFIER_IVEC4:
- spec->type = slang_spec_ivec4;
- break;
- case TYPE_SPECIFIER_FLOAT:
- spec->type = slang_spec_float;
- break;
- case TYPE_SPECIFIER_VEC2:
- spec->type = slang_spec_vec2;
- break;
- case TYPE_SPECIFIER_VEC3:
- spec->type = slang_spec_vec3;
- break;
- case TYPE_SPECIFIER_VEC4:
- spec->type = slang_spec_vec4;
- break;
- case TYPE_SPECIFIER_MAT2:
- spec->type = slang_spec_mat2;
- break;
- case TYPE_SPECIFIER_MAT3:
- spec->type = slang_spec_mat3;
- break;
- case TYPE_SPECIFIER_MAT4:
- spec->type = slang_spec_mat4;
- break;
- case TYPE_SPECIFIER_SAMPLER1D:
- spec->type = slang_spec_sampler1D;
- break;
- case TYPE_SPECIFIER_SAMPLER2D:
- spec->type = slang_spec_sampler2D;
- break;
- case TYPE_SPECIFIER_SAMPLER3D:
- spec->type = slang_spec_sampler3D;
- break;
- case TYPE_SPECIFIER_SAMPLERCUBE:
- spec->type = slang_spec_samplerCube;
- break;
- case TYPE_SPECIFIER_SAMPLER1DSHADOW:
- spec->type = slang_spec_sampler1DShadow;
- break;
- case TYPE_SPECIFIER_SAMPLER2DSHADOW:
- spec->type = slang_spec_sampler2DShadow;
- break;
- case TYPE_SPECIFIER_STRUCT:
- spec->type = slang_spec_struct;
- {
- char *name;
- if (!parse_identifier (C, &name))
- return 0;
- if (*name != '\0' && slang_struct_scope_find (structs, name, 0) != NULL)
- {
- slang_info_log_error (C->L, "%s: duplicate type name", name);
- slang_alloc_free (name);
- return 0;
- }
- spec->_struct = (slang_struct *) slang_alloc_malloc (sizeof (slang_struct));
- if (spec->_struct == NULL)
- {
- slang_alloc_free (name);
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!slang_struct_construct_a (spec->_struct))
- {
- slang_alloc_free (spec->_struct);
- spec->_struct = NULL;
- slang_alloc_free (name);
- slang_info_log_memory (C->L);
- return 0;
- }
- spec->_struct->name = name;
- spec->_struct->structs->outer_scope = structs;
- }
- do
- {
- slang_type_specifier sp;
- slang_type_specifier_construct (&sp);
- if (!parse_type_specifier (C, &sp, spec->_struct->structs, scope, funcs))
- {
- slang_type_specifier_destruct (&sp);
- return 0;
- }
- do
- {
- slang_variable *var;
- spec->_struct->fields->variables = (slang_variable *) slang_alloc_realloc (
- spec->_struct->fields->variables,
- spec->_struct->fields->num_variables * sizeof (slang_variable),
- (spec->_struct->fields->num_variables + 1) * sizeof (slang_variable));
- if (spec->_struct->fields->variables == NULL)
- {
- slang_type_specifier_destruct (&sp);
- slang_info_log_memory (C->L);
- return 0;
- }
- var = spec->_struct->fields->variables + spec->_struct->fields->num_variables;
- spec->_struct->fields->num_variables++;
- slang_variable_construct (var);
- if (!slang_type_specifier_copy (&var->type.specifier, &sp))
- {
- slang_type_specifier_destruct (&sp);
- return 0;
- }
- if (!parse_identifier (C, &var->name))
- {
- slang_type_specifier_destruct (&sp);
- return 0;
- }
- switch (*C->I++)
- {
- case FIELD_NONE:
- break;
- case FIELD_ARRAY:
- var->array_size = (slang_operation *) slang_alloc_malloc (sizeof (
- slang_operation));
- if (var->array_size == NULL)
- {
- slang_type_specifier_destruct (&sp);
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!slang_operation_construct_a (var->array_size))
- {
- slang_alloc_free (var->array_size);
- var->array_size = NULL;
- slang_type_specifier_destruct (&sp);
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!parse_expression (C, var->array_size, scope, structs, funcs))
- {
- slang_type_specifier_destruct (&sp);
- return 0;
- }
- break;
- default:
- return 0;
- }
- }
- while (*C->I++ != FIELD_NONE);
- }
- while (*C->I++ != FIELD_NONE);
- if (*spec->_struct->name != '\0')
- {
- slang_struct *s;
- structs->structs = (slang_struct *) slang_alloc_realloc (structs->structs,
- structs->num_structs * sizeof (slang_struct),
- (structs->num_structs + 1) * sizeof (slang_struct));
- if (structs->structs == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- s = structs->structs + structs->num_structs;
- if (!slang_struct_construct_a (s))
- return 0;
- structs->num_structs++;
- if (!slang_struct_copy (s, spec->_struct))
- return 0;
- }
- break;
- case TYPE_SPECIFIER_TYPENAME:
- spec->type = slang_spec_struct;
- {
- char *name;
- slang_struct *stru;
- if (!parse_identifier (C, &name))
- return 0;
- stru = slang_struct_scope_find (structs, name, 1);
- if (stru == NULL)
- {
- slang_info_log_error (C->L, "%s: undeclared type name", name);
- slang_alloc_free (name);
- return 0;
- }
- slang_alloc_free (name);
- spec->_struct = (slang_struct *) slang_alloc_malloc (sizeof (slang_struct));
- if (spec->_struct == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!slang_struct_construct_a (spec->_struct))
- {
- slang_alloc_free (spec->_struct);
- spec->_struct = NULL;
- return 0;
- }
- if (!slang_struct_copy (spec->_struct, stru))
- return 0;
- }
- break;
- default:
- return 0;
- }
- return 1;
-}
-
-static int parse_fully_specified_type (slang_parse_ctx *C, slang_fully_specified_type *type,
- slang_struct_scope *structs, slang_variable_scope *scope, slang_function_scope *funcs)
-{
- if (!parse_type_qualifier (C, &type->qualifier))
- return 0;
- return parse_type_specifier (C, &type->specifier, structs, scope, funcs);
+static int
+parse_type_specifier(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_type_specifier * spec)
+{
+ switch (*C->I++) {
+ case TYPE_SPECIFIER_VOID:
+ spec->type = slang_spec_void;
+ break;
+ case TYPE_SPECIFIER_BOOL:
+ spec->type = slang_spec_bool;
+ break;
+ case TYPE_SPECIFIER_BVEC2:
+ spec->type = slang_spec_bvec2;
+ break;
+ case TYPE_SPECIFIER_BVEC3:
+ spec->type = slang_spec_bvec3;
+ break;
+ case TYPE_SPECIFIER_BVEC4:
+ spec->type = slang_spec_bvec4;
+ break;
+ case TYPE_SPECIFIER_INT:
+ spec->type = slang_spec_int;
+ break;
+ case TYPE_SPECIFIER_IVEC2:
+ spec->type = slang_spec_ivec2;
+ break;
+ case TYPE_SPECIFIER_IVEC3:
+ spec->type = slang_spec_ivec3;
+ break;
+ case TYPE_SPECIFIER_IVEC4:
+ spec->type = slang_spec_ivec4;
+ break;
+ case TYPE_SPECIFIER_FLOAT:
+ spec->type = slang_spec_float;
+ break;
+ case TYPE_SPECIFIER_VEC2:
+ spec->type = slang_spec_vec2;
+ break;
+ case TYPE_SPECIFIER_VEC3:
+ spec->type = slang_spec_vec3;
+ break;
+ case TYPE_SPECIFIER_VEC4:
+ spec->type = slang_spec_vec4;
+ break;
+ case TYPE_SPECIFIER_MAT2:
+ spec->type = slang_spec_mat2;
+ break;
+ case TYPE_SPECIFIER_MAT3:
+ spec->type = slang_spec_mat3;
+ break;
+ case TYPE_SPECIFIER_MAT4:
+ spec->type = slang_spec_mat4;
+ break;
+ case TYPE_SPECIFIER_SAMPLER1D:
+ spec->type = slang_spec_sampler1D;
+ break;
+ case TYPE_SPECIFIER_SAMPLER2D:
+ spec->type = slang_spec_sampler2D;
+ break;
+ case TYPE_SPECIFIER_SAMPLER3D:
+ spec->type = slang_spec_sampler3D;
+ break;
+ case TYPE_SPECIFIER_SAMPLERCUBE:
+ spec->type = slang_spec_samplerCube;
+ break;
+ case TYPE_SPECIFIER_SAMPLER1DSHADOW:
+ spec->type = slang_spec_sampler1DShadow;
+ break;
+ case TYPE_SPECIFIER_SAMPLER2DSHADOW:
+ spec->type = slang_spec_sampler2DShadow;
+ break;
+ case TYPE_SPECIFIER_STRUCT:
+ spec->type = slang_spec_struct;
+ if (!parse_struct(C, O, &spec->_struct))
+ return 0;
+ break;
+ case TYPE_SPECIFIER_TYPENAME:
+ spec->type = slang_spec_struct;
+ {
+ slang_atom a_name;
+ slang_struct *stru;
+
+ a_name = parse_identifier(C);
+ if (a_name == NULL)
+ return 0;
+
+ stru = slang_struct_scope_find(O->structs, a_name, 1);
+ if (stru == NULL) {
+ slang_info_log_error(C->L, "undeclared type name '%s'",
+ slang_atom_pool_id(C->atoms, a_name));
+ return 0;
+ }
+
+ spec->_struct =
+ (slang_struct *) slang_alloc_malloc(sizeof(slang_struct));
+ if (spec->_struct == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ if (!slang_struct_construct(spec->_struct)) {
+ slang_alloc_free(spec->_struct);
+ spec->_struct = NULL;
+ return 0;
+ }
+ if (!slang_struct_copy(spec->_struct, stru))
+ return 0;
+ }
+ break;
+ default:
+ return 0;
+ }
+ return 1;
+}
+
+static int
+parse_fully_specified_type(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_fully_specified_type * type)
+{
+ if (!parse_type_qualifier(C, &type->qualifier))
+ return 0;
+ if (!parse_type_specifier(C, O, &type->specifier))
+ return 0;
+ return 1;
}
/* operation */
#define OP_POSTINCREMENT 60
#define OP_POSTDECREMENT 61
-static int parse_child_operation (slang_parse_ctx *C, slang_operation *oper, int statement,
- slang_variable_scope *scope, slang_struct_scope *structs, slang_function_scope *funcs)
-{
- oper->children = (slang_operation *) slang_alloc_realloc (oper->children,
- oper->num_children * sizeof (slang_operation),
- (oper->num_children + 1) * sizeof (slang_operation));
- if (oper->children == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!slang_operation_construct_a (oper->children + oper->num_children))
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- oper->num_children++;
- if (statement)
- return parse_statement (C, oper->children + oper->num_children - 1, scope, structs, funcs);
- return parse_expression (C, oper->children + oper->num_children - 1, scope, structs, funcs);
-}
-
-static int parse_declaration (slang_parse_ctx *C, slang_variable_scope *, slang_struct_scope *,
- slang_function_scope *);
-
-static int parse_statement (slang_parse_ctx *C, slang_operation *oper, slang_variable_scope *scope,
- slang_struct_scope *structs, slang_function_scope *funcs)
-{
- oper->locals->outer_scope = scope;
- switch (*C->I++)
- {
- case OP_BLOCK_BEGIN_NO_NEW_SCOPE:
- oper->type = slang_oper_block_no_new_scope;
- while (*C->I != OP_END)
- if (!parse_child_operation (C, oper, 1, scope, structs, funcs))
- return 0;
- C->I++;
- break;
- case OP_BLOCK_BEGIN_NEW_SCOPE:
- oper->type = slang_oper_block_new_scope;
- while (*C->I != OP_END)
- if (!parse_child_operation (C, oper, 1, oper->locals, structs, funcs))
- return 0;
- C->I++;
- break;
- case OP_DECLARE:
- oper->type = slang_oper_variable_decl;
- {
- const unsigned int first_var = scope->num_variables;
- if (!parse_declaration (C, scope, structs, funcs))
- return 0;
- if (first_var < scope->num_variables)
- {
- const unsigned int num_vars = scope->num_variables - first_var;
- unsigned int i;
- oper->children = (slang_operation *) slang_alloc_malloc (num_vars * sizeof (
- slang_operation));
- if (oper->children == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- for (i = 0; i < num_vars; i++)
- if (!slang_operation_construct_a (oper->children + i))
- {
- unsigned int j;
- for (j = 0; j < i; j++)
- slang_operation_destruct (oper->children + j);
- slang_alloc_free (oper->children);
- oper->children = NULL;
- slang_info_log_memory (C->L);
- return 0;
- }
- oper->num_children = num_vars;
- for (i = first_var; i < scope->num_variables; i++)
- {
- slang_operation *o = oper->children + i - first_var;
- o->type = slang_oper_identifier;
- o->locals->outer_scope = scope;
- o->identifier = slang_string_duplicate (scope->variables[i].name);
- if (o->identifier == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- }
- }
- }
- break;
- case OP_ASM:
- oper->type = slang_oper_asm;
- if (!parse_identifier (C, &oper->identifier))
- return 0;
- while (*C->I != OP_END)
- if (!parse_child_operation (C, oper, 0, scope, structs, funcs))
- return 0;
- C->I++;
- break;
- case OP_BREAK:
- oper->type = slang_oper_break;
- break;
- case OP_CONTINUE:
- oper->type = slang_oper_continue;
- break;
- case OP_DISCARD:
- oper->type = slang_oper_discard;
- break;
- case OP_RETURN:
- oper->type = slang_oper_return;
- if (!parse_child_operation (C, oper, 0, scope, structs, funcs))
- return 0;
- break;
- case OP_EXPRESSION:
- oper->type = slang_oper_expression;
- if (!parse_child_operation (C, oper, 0, scope, structs, funcs))
- return 0;
- break;
- case OP_IF:
- oper->type = slang_oper_if;
- if (!parse_child_operation (C, oper, 0, scope, structs, funcs))
- return 0;
- if (!parse_child_operation (C, oper, 1, scope, structs, funcs))
- return 0;
- if (!parse_child_operation (C, oper, 1, scope, structs, funcs))
- return 0;
- break;
- case OP_WHILE:
- oper->type = slang_oper_while;
- if (!parse_child_operation (C, oper, 1, oper->locals, structs, funcs))
- return 0;
- if (!parse_child_operation (C, oper, 1, oper->locals, structs, funcs))
- return 0;
- break;
- case OP_DO:
- oper->type = slang_oper_do;
- if (!parse_child_operation (C, oper, 1, scope, structs, funcs))
- return 0;
- if (!parse_child_operation (C, oper, 0, scope, structs, funcs))
- return 0;
- break;
- case OP_FOR:
- oper->type = slang_oper_for;
- if (!parse_child_operation (C, oper, 1, oper->locals, structs, funcs))
- return 0;
- if (!parse_child_operation (C, oper, 1, oper->locals, structs, funcs))
- return 0;
- if (!parse_child_operation (C, oper, 0, oper->locals, structs, funcs))
- return 0;
- if (!parse_child_operation (C, oper, 1, oper->locals, structs, funcs))
- return 0;
- break;
- default:
- return 0;
- }
- return 1;
-}
-
-static int handle_trinary_expression (slang_parse_ctx *C, slang_operation *op,
- slang_operation **ops, unsigned int *num_ops)
-{
- op->num_children = 3;
- op->children = (slang_operation *) slang_alloc_malloc (3 * sizeof (slang_operation));
- if (op->children == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- op->children[0] = (*ops)[*num_ops - 4];
- op->children[1] = (*ops)[*num_ops - 3];
- op->children[2] = (*ops)[*num_ops - 2];
- (*ops)[*num_ops - 4] = (*ops)[*num_ops - 1];
- *num_ops -= 3;
- *ops = (slang_operation *) slang_alloc_realloc (*ops, (*num_ops + 3) * sizeof (slang_operation),
- *num_ops * sizeof (slang_operation));
- if (*ops == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- return 1;
-}
-
-static int handle_binary_expression (slang_parse_ctx *C, slang_operation *op,
- slang_operation **ops, unsigned int *num_ops)
-{
- op->num_children = 2;
- op->children = (slang_operation *) slang_alloc_malloc (2 * sizeof (slang_operation));
- if (op->children == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- op->children[0] = (*ops)[*num_ops - 3];
- op->children[1] = (*ops)[*num_ops - 2];
- (*ops)[*num_ops - 3] = (*ops)[*num_ops - 1];
- *num_ops -= 2;
- *ops = (slang_operation *) slang_alloc_realloc (*ops, (*num_ops + 2) * sizeof (slang_operation),
- *num_ops * sizeof (slang_operation));
- if (*ops == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- return 1;
-}
-
-static int handle_unary_expression (slang_parse_ctx *C, slang_operation *op,
- slang_operation **ops, unsigned int *num_ops)
-{
- op->num_children = 1;
- op->children = (slang_operation *) slang_alloc_malloc (sizeof (slang_operation));
- if (op->children == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- op->children[0] = (*ops)[*num_ops - 2];
- (*ops)[*num_ops - 2] = (*ops)[*num_ops - 1];
- (*num_ops)--;
- *ops = (slang_operation *) slang_alloc_realloc (*ops, (*num_ops + 1) * sizeof (slang_operation),
- *num_ops * sizeof (slang_operation));
- if (*ops == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- return 1;
-}
-
-static int is_constructor_name (const char *name, slang_struct_scope *structs)
-{
- if (slang_type_specifier_type_from_string (name) != slang_spec_void)
- return 1;
- return slang_struct_scope_find (structs, name, 1) != NULL;
-}
-static int parse_expression (slang_parse_ctx *C, slang_operation *oper, slang_variable_scope *scope,
- slang_struct_scope *structs, slang_function_scope *funcs)
-{
- slang_operation *ops = NULL;
- unsigned int num_ops = 0;
- int number;
-
- while (*C->I != OP_END)
- {
- slang_operation *op;
- const unsigned int op_code = *C->I++;
- ops = (slang_operation *) slang_alloc_realloc (ops,
- num_ops * sizeof (slang_operation), (num_ops + 1) * sizeof (slang_operation));
- if (ops == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- op = ops + num_ops;
- if (!slang_operation_construct_a (op))
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- num_ops++;
- op->locals->outer_scope = scope;
- switch (op_code)
- {
- case OP_PUSH_VOID:
- op->type = slang_oper_void;
- break;
- case OP_PUSH_BOOL:
- op->type = slang_oper_literal_bool;
- if (!parse_number (C, &number))
- return 0;
- op->literal = (float) number;
- break;
- case OP_PUSH_INT:
- op->type = slang_oper_literal_int;
- if (!parse_number (C, &number))
- return 0;
- op->literal = (float) number;
- break;
- case OP_PUSH_FLOAT:
- op->type = slang_oper_literal_float;
- if (!parse_float (C, &op->literal))
- return 0;
- break;
- case OP_PUSH_IDENTIFIER:
- op->type = slang_oper_identifier;
- if (!parse_identifier (C, &op->identifier))
- return 0;
- break;
- case OP_SEQUENCE:
- op->type = slang_oper_sequence;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_ASSIGN:
- op->type = slang_oper_assign;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_ADDASSIGN:
- op->type = slang_oper_addassign;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_SUBASSIGN:
- op->type = slang_oper_subassign;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_MULASSIGN:
- op->type = slang_oper_mulassign;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_DIVASSIGN:
- op->type = slang_oper_divassign;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- /*case OP_MODASSIGN:*/
- /*case OP_LSHASSIGN:*/
- /*case OP_RSHASSIGN:*/
- /*case OP_ORASSIGN:*/
- /*case OP_XORASSIGN:*/
- /*case OP_ANDASSIGN:*/
- case OP_SELECT:
- op->type = slang_oper_select;
- if (!handle_trinary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_LOGICALOR:
- op->type = slang_oper_logicalor;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_LOGICALXOR:
- op->type = slang_oper_logicalxor;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_LOGICALAND:
- op->type = slang_oper_logicaland;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- /*case OP_BITOR:*/
- /*case OP_BITXOR:*/
- /*case OP_BITAND:*/
- case OP_EQUAL:
- op->type = slang_oper_equal;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_NOTEQUAL:
- op->type = slang_oper_notequal;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_LESS:
- op->type = slang_oper_less;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_GREATER:
- op->type = slang_oper_greater;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_LESSEQUAL:
- op->type = slang_oper_lessequal;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_GREATEREQUAL:
- op->type = slang_oper_greaterequal;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- /*case OP_LSHIFT:*/
- /*case OP_RSHIFT:*/
- case OP_ADD:
- op->type = slang_oper_add;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_SUBTRACT:
- op->type = slang_oper_subtract;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_MULTIPLY:
- op->type = slang_oper_multiply;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_DIVIDE:
- op->type = slang_oper_divide;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- /*case OP_MODULUS:*/
- case OP_PREINCREMENT:
- op->type = slang_oper_preincrement;
- if (!handle_unary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_PREDECREMENT:
- op->type = slang_oper_predecrement;
- if (!handle_unary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_PLUS:
- op->type = slang_oper_plus;
- if (!handle_unary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_MINUS:
- op->type = slang_oper_minus;
- if (!handle_unary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_NOT:
- op->type = slang_oper_not;
- if (!handle_unary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- /*case OP_COMPLEMENT:*/
- case OP_SUBSCRIPT:
- op->type = slang_oper_subscript;
- if (!handle_binary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_CALL:
- op->type = slang_oper_call;
- if (!parse_identifier (C, &op->identifier))
- return 0;
- while (*C->I != OP_END)
- if (!parse_child_operation (C, op, 0, scope, structs, funcs))
- return 0;
- C->I++;
- if (!C->parsing_builtin &&
- !slang_function_scope_find_by_name (funcs, op->identifier, 1) &&
- !is_constructor_name (op->identifier, structs))
- {
- slang_info_log_error (C->L, "%s: undeclared function name", op->identifier);
- return 0;
- }
- break;
- case OP_FIELD:
- op->type = slang_oper_field;
- if (!parse_identifier (C, &op->identifier))
- return 0;
- if (!handle_unary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_POSTINCREMENT:
- op->type = slang_oper_postincrement;
- if (!handle_unary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- case OP_POSTDECREMENT:
- op->type = slang_oper_postdecrement;
- if (!handle_unary_expression (C, op, &ops, &num_ops))
- return 0;
- break;
- default:
- return 0;
- }
- }
- C->I++;
- *oper = *ops;
- slang_alloc_free (ops);
- return 1;
+/**
+ * When parsing a compound production, this function is used to parse the
+ * children.
+ * For example, a a while-loop compound will have two children, the
+ * while condition expression and the loop body. So, this function will
+ * be called twice to parse those two sub-expressions.
+ * \param C the parsing context
+ * \param O the output context
+ * \param oper the operation we're parsing
+ * \param statement indicates whether parsing a statement, or expression
+ * \return 1 if success, 0 if error
+ */
+static int
+parse_child_operation(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_operation * oper, GLboolean statement)
+{
+ slang_operation *ch;
+
+ /* grow child array */
+ ch = slang_operation_grow(&oper->num_children, &oper->children);
+ if (statement)
+ return parse_statement(C, O, ch);
+ return parse_expression(C, O, ch);
+}
+
+static int parse_declaration(slang_parse_ctx * C, slang_output_ctx * O);
+
+static int
+parse_statement(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_operation * oper)
+{
+ oper->locals->outer_scope = O->vars;
+ switch (*C->I++) {
+ case OP_BLOCK_BEGIN_NO_NEW_SCOPE:
+ /* parse child statements, do not create new variable scope */
+ oper->type = slang_oper_block_no_new_scope;
+ while (*C->I != OP_END)
+ if (!parse_child_operation(C, O, oper, 1))
+ return 0;
+ C->I++;
+ break;
+ case OP_BLOCK_BEGIN_NEW_SCOPE:
+ /* parse child statements, create new variable scope */
+ {
+ slang_output_ctx o = *O;
+
+ oper->type = slang_oper_block_new_scope;
+ o.vars = oper->locals;
+ while (*C->I != OP_END)
+ if (!parse_child_operation(C, &o, oper, 1))
+ return 0;
+ C->I++;
+ }
+ break;
+ case OP_DECLARE:
+ /* local variable declaration, individual declarators are stored as
+ * children identifiers
+ */
+ oper->type = slang_oper_block_no_new_scope;
+ {
+ const unsigned int first_var = O->vars->num_variables;
+
+ /* parse the declaration, note that there can be zero or more
+ * than one declarators
+ */
+ if (!parse_declaration(C, O))
+ return 0;
+ if (first_var < O->vars->num_variables) {
+ const unsigned int num_vars = O->vars->num_variables - first_var;
+ unsigned int i;
+
+ oper->num_children = num_vars;
+ oper->children = slang_operation_new(num_vars);
+ if (oper->children == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ for (i = first_var; i < O->vars->num_variables; i++) {
+ slang_operation *o = &oper->children[i - first_var];
+ o->type = slang_oper_variable_decl;
+ o->locals->outer_scope = O->vars;
+ o->a_id = O->vars->variables[i]->a_name;
+ }
+ }
+ }
+ break;
+ case OP_ASM:
+ /* the __asm statement, parse the mnemonic and all its arguments
+ * as expressions
+ */
+ oper->type = slang_oper_asm;
+ oper->a_id = parse_identifier(C);
+ if (oper->a_id == SLANG_ATOM_NULL)
+ return 0;
+ while (*C->I != OP_END) {
+ if (!parse_child_operation(C, O, oper, 0))
+ return 0;
+ }
+ C->I++;
+ break;
+ case OP_BREAK:
+ oper->type = slang_oper_break;
+ break;
+ case OP_CONTINUE:
+ oper->type = slang_oper_continue;
+ break;
+ case OP_DISCARD:
+ oper->type = slang_oper_discard;
+ break;
+ case OP_RETURN:
+ oper->type = slang_oper_return;
+ if (!parse_child_operation(C, O, oper, 0))
+ return 0;
+ break;
+ case OP_EXPRESSION:
+ oper->type = slang_oper_expression;
+ if (!parse_child_operation(C, O, oper, 0))
+ return 0;
+ break;
+ case OP_IF:
+ oper->type = slang_oper_if;
+ if (!parse_child_operation(C, O, oper, 0))
+ return 0;
+ if (!parse_child_operation(C, O, oper, 1))
+ return 0;
+ if (!parse_child_operation(C, O, oper, 1))
+ return 0;
+ break;
+ case OP_WHILE:
+ {
+ slang_output_ctx o = *O;
+
+ oper->type = slang_oper_while;
+ o.vars = oper->locals;
+ if (!parse_child_operation(C, &o, oper, 1))
+ return 0;
+ if (!parse_child_operation(C, &o, oper, 1))
+ return 0;
+ }
+ break;
+ case OP_DO:
+ oper->type = slang_oper_do;
+ if (!parse_child_operation(C, O, oper, 1))
+ return 0;
+ if (!parse_child_operation(C, O, oper, 0))
+ return 0;
+ break;
+ case OP_FOR:
+ {
+ slang_output_ctx o = *O;
+
+ oper->type = slang_oper_for;
+ o.vars = oper->locals;
+ if (!parse_child_operation(C, &o, oper, 1))
+ return 0;
+ if (!parse_child_operation(C, &o, oper, 1))
+ return 0;
+ if (!parse_child_operation(C, &o, oper, 0))
+ return 0;
+ if (!parse_child_operation(C, &o, oper, 1))
+ return 0;
+ }
+ break;
+ default:
+ return 0;
+ }
+ return 1;
+}
+
+static int
+handle_nary_expression(slang_parse_ctx * C, slang_operation * op,
+ slang_operation ** ops, unsigned int *total_ops,
+ unsigned int n)
+{
+ unsigned int i;
+
+ op->children =
+ (slang_operation *) slang_alloc_malloc(n * sizeof(slang_operation));
+ if (op->children == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ op->num_children = n;
+
+ for (i = 0; i < n; i++)
+ op->children[i] = (*ops)[*total_ops - (n + 1 - i)];
+ (*ops)[*total_ops - (n + 1)] = (*ops)[*total_ops - 1];
+ *total_ops -= n;
+
+ *ops = (slang_operation *)
+ slang_alloc_realloc(*ops,
+ (*total_ops + n) * sizeof(slang_operation),
+ *total_ops * sizeof(slang_operation));
+ if (*ops == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ return 1;
+}
+
+static int
+is_constructor_name(const char *name, slang_atom a_name,
+ slang_struct_scope * structs)
+{
+ if (slang_type_specifier_type_from_string(name) != slang_spec_void)
+ return 1;
+ return slang_struct_scope_find(structs, a_name, 1) != NULL;
+}
+
+static int
+parse_expression(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_operation * oper)
+{
+ slang_operation *ops = NULL;
+ unsigned int num_ops = 0;
+ int number;
+
+ while (*C->I != OP_END) {
+ slang_operation *op;
+ const unsigned int op_code = *C->I++;
+
+ /* allocate default operation, becomes a no-op if not used */
+ ops = (slang_operation *)
+ slang_alloc_realloc(ops,
+ num_ops * sizeof(slang_operation),
+ (num_ops + 1) * sizeof(slang_operation));
+ if (ops == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ op = &ops[num_ops];
+ if (!slang_operation_construct(op)) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ num_ops++;
+ op->locals->outer_scope = O->vars;
+
+ switch (op_code) {
+ case OP_PUSH_VOID:
+ op->type = slang_oper_void;
+ break;
+ case OP_PUSH_BOOL:
+ op->type = slang_oper_literal_bool;
+ if (!parse_number(C, &number))
+ return 0;
+ op->literal[0] =
+ op->literal[1] =
+ op->literal[2] =
+ op->literal[3] = (GLfloat) number;
+ break;
+ case OP_PUSH_INT:
+ op->type = slang_oper_literal_int;
+ if (!parse_number(C, &number))
+ return 0;
+ op->literal[0] =
+ op->literal[1] =
+ op->literal[2] =
+ op->literal[3] = (GLfloat) number;
+ break;
+ case OP_PUSH_FLOAT:
+ op->type = slang_oper_literal_float;
+ if (!parse_float(C, &op->literal[0]))
+ return 0;
+ op->literal[1] =
+ op->literal[2] =
+ op->literal[3] = op->literal[0];
+ break;
+ case OP_PUSH_IDENTIFIER:
+ op->type = slang_oper_identifier;
+ op->a_id = parse_identifier(C);
+ if (op->a_id == SLANG_ATOM_NULL)
+ return 0;
+ break;
+ case OP_SEQUENCE:
+ op->type = slang_oper_sequence;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_ASSIGN:
+ op->type = slang_oper_assign;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_ADDASSIGN:
+ op->type = slang_oper_addassign;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_SUBASSIGN:
+ op->type = slang_oper_subassign;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_MULASSIGN:
+ op->type = slang_oper_mulassign;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_DIVASSIGN:
+ op->type = slang_oper_divassign;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ /*case OP_MODASSIGN: */
+ /*case OP_LSHASSIGN: */
+ /*case OP_RSHASSIGN: */
+ /*case OP_ORASSIGN: */
+ /*case OP_XORASSIGN: */
+ /*case OP_ANDASSIGN: */
+ case OP_SELECT:
+ op->type = slang_oper_select;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 3))
+ return 0;
+ break;
+ case OP_LOGICALOR:
+ op->type = slang_oper_logicalor;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_LOGICALXOR:
+ op->type = slang_oper_logicalxor;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_LOGICALAND:
+ op->type = slang_oper_logicaland;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ /*case OP_BITOR: */
+ /*case OP_BITXOR: */
+ /*case OP_BITAND: */
+ case OP_EQUAL:
+ op->type = slang_oper_equal;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_NOTEQUAL:
+ op->type = slang_oper_notequal;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_LESS:
+ op->type = slang_oper_less;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_GREATER:
+ op->type = slang_oper_greater;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_LESSEQUAL:
+ op->type = slang_oper_lessequal;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_GREATEREQUAL:
+ op->type = slang_oper_greaterequal;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ /*case OP_LSHIFT: */
+ /*case OP_RSHIFT: */
+ case OP_ADD:
+ op->type = slang_oper_add;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_SUBTRACT:
+ op->type = slang_oper_subtract;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_MULTIPLY:
+ op->type = slang_oper_multiply;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_DIVIDE:
+ op->type = slang_oper_divide;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ /*case OP_MODULUS: */
+ case OP_PREINCREMENT:
+ op->type = slang_oper_preincrement;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ case OP_PREDECREMENT:
+ op->type = slang_oper_predecrement;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ case OP_PLUS:
+ op->type = slang_oper_plus;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ case OP_MINUS:
+ op->type = slang_oper_minus;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ case OP_NOT:
+ op->type = slang_oper_not;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ /*case OP_COMPLEMENT: */
+ case OP_SUBSCRIPT:
+ op->type = slang_oper_subscript;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_CALL:
+ op->type = slang_oper_call;
+ op->a_id = parse_identifier(C);
+ if (op->a_id == SLANG_ATOM_NULL)
+ return 0;
+ while (*C->I != OP_END)
+ if (!parse_child_operation(C, O, op, 0))
+ return 0;
+ C->I++;
+
+ if (!C->parsing_builtin
+ && !slang_function_scope_find_by_name(O->funs, op->a_id, 1)) {
+ const char *id;
+
+ id = slang_atom_pool_id(C->atoms, op->a_id);
+ if (!is_constructor_name(id, op->a_id, O->structs)) {
+ slang_info_log_error(C->L, "%s: undeclared function name.", id);
+ return 0;
+ }
+ }
+ break;
+ case OP_FIELD:
+ op->type = slang_oper_field;
+ op->a_id = parse_identifier(C);
+ if (op->a_id == SLANG_ATOM_NULL)
+ return 0;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ case OP_POSTINCREMENT:
+ op->type = slang_oper_postincrement;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ case OP_POSTDECREMENT:
+ op->type = slang_oper_postdecrement;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ default:
+ return 0;
+ }
+ }
+ C->I++;
+
+ *oper = *ops;
+ slang_alloc_free(ops);
+
+ return 1;
}
/* parameter qualifier */
#define PARAMETER_ARRAY_NOT_PRESENT 0
#define PARAMETER_ARRAY_PRESENT 1
-static int parse_parameter_declaration (slang_parse_ctx *C, slang_variable *param,
- slang_struct_scope *structs, slang_variable_scope *scope, slang_function_scope *funcs)
-{
- slang_storage_aggregate agg;
- if (!parse_type_qualifier (C, ¶m->type.qualifier))
- return 0;
- switch (*C->I++)
- {
- case PARAM_QUALIFIER_IN:
- if (param->type.qualifier != slang_qual_const && param->type.qualifier != slang_qual_none)
- {
- slang_info_log_error (C->L, "invalid type qualifier");
- return 0;
- }
- break;
- case PARAM_QUALIFIER_OUT:
- if (param->type.qualifier == slang_qual_none)
- param->type.qualifier = slang_qual_out;
- else
- {
- slang_info_log_error (C->L, "invalid type qualifier");
- return 0;
- }
- break;
- case PARAM_QUALIFIER_INOUT:
- if (param->type.qualifier == slang_qual_none)
- param->type.qualifier = slang_qual_inout;
- else
- {
- slang_info_log_error (C->L, "invalid type qualifier");
- return 0;
- }
- break;
- default:
- return 0;
- }
- if (!parse_type_specifier (C, ¶m->type.specifier, structs, scope, funcs))
- return 0;
- if (!parse_identifier (C, ¶m->name))
- return 0;
- if (*C->I++ == PARAMETER_ARRAY_PRESENT)
- {
- param->array_size = (slang_operation *) slang_alloc_malloc (sizeof (slang_operation));
- if (param->array_size == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!slang_operation_construct_a (param->array_size))
- {
- slang_alloc_free (param->array_size);
- param->array_size = NULL;
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!parse_expression (C, param->array_size, scope, structs, funcs))
- return 0;
- }
- slang_storage_aggregate_construct (&agg);
- if (!_slang_aggregate_variable (&agg, ¶m->type.specifier, param->array_size, funcs,
- structs))
- {
- slang_storage_aggregate_destruct (&agg);
- return 0;
- }
- slang_storage_aggregate_destruct (&agg);
- return 1;
+static int
+parse_parameter_declaration(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_variable * param)
+{
+ /* parse and validate the parameter's type qualifiers (there can be
+ * two at most) because not all combinations are valid
+ */
+ if (!parse_type_qualifier(C, ¶m->type.qualifier))
+ return 0;
+ switch (*C->I++) {
+ case PARAM_QUALIFIER_IN:
+ if (param->type.qualifier != slang_qual_const
+ && param->type.qualifier != slang_qual_none) {
+ slang_info_log_error(C->L, "Invalid type qualifier.");
+ return 0;
+ }
+ break;
+ case PARAM_QUALIFIER_OUT:
+ if (param->type.qualifier == slang_qual_none)
+ param->type.qualifier = slang_qual_out;
+ else {
+ slang_info_log_error(C->L, "Invalid type qualifier.");
+ return 0;
+ }
+ break;
+ case PARAM_QUALIFIER_INOUT:
+ if (param->type.qualifier == slang_qual_none)
+ param->type.qualifier = slang_qual_inout;
+ else {
+ slang_info_log_error(C->L, "Invalid type qualifier.");
+ return 0;
+ }
+ break;
+ default:
+ return 0;
+ }
+
+ /* parse parameter's type specifier and name */
+ if (!parse_type_specifier(C, O, ¶m->type.specifier))
+ return 0;
+ param->a_name = parse_identifier(C);
+ if (param->a_name == SLANG_ATOM_NULL)
+ return 0;
+
+ /* if the parameter is an array, parse its size (the size must be
+ * explicitly defined
+ */
+ if (*C->I++ == PARAMETER_ARRAY_PRESENT) {
+ slang_type_specifier p;
+
+ slang_type_specifier_ctr(&p);
+ if (!slang_type_specifier_copy(&p, ¶m->type.specifier)) {
+ slang_type_specifier_dtr(&p);
+ return GL_FALSE;
+ }
+ if (!convert_to_array(C, param, &p)) {
+ slang_type_specifier_dtr(&p);
+ return GL_FALSE;
+ }
+ slang_type_specifier_dtr(&p);
+ if (!parse_array_len(C, O, ¶m->array_len))
+ return GL_FALSE;
+ }
+
+ /* calculate the parameter size */
+ if (!calculate_var_size(C, O, param))
+ return GL_FALSE;
+
+ /* TODO: allocate the local address here? */
+ return 1;
}
/* function type */
#define PARAMETER_NEXT 1
/* operator type */
-#define OPERATOR_ASSIGN 1
-#define OPERATOR_ADDASSIGN 2
-#define OPERATOR_SUBASSIGN 3
-#define OPERATOR_MULASSIGN 4
-#define OPERATOR_DIVASSIGN 5
-/*#define OPERATOR_MODASSIGN 6*/
-/*#define OPERATOR_LSHASSIGN 7*/
-/*#define OPERATOR_RSHASSIGN 8*/
-/*#define OPERATOR_ANDASSIGN 9*/
-/*#define OPERATOR_XORASSIGN 10*/
-/*#define OPERATOR_ORASSIGN 11*/
-#define OPERATOR_LOGICALXOR 12
-/*#define OPERATOR_BITOR 13*/
-/*#define OPERATOR_BITXOR 14*/
-/*#define OPERATOR_BITAND 15*/
-#define OPERATOR_EQUAL 16
-#define OPERATOR_NOTEQUAL 17
-#define OPERATOR_LESS 18
-#define OPERATOR_GREATER 19
-#define OPERATOR_LESSEQUAL 20
-#define OPERATOR_GREATEREQUAL 21
-/*#define OPERATOR_LSHIFT 22*/
-/*#define OPERATOR_RSHIFT 23*/
-#define OPERATOR_MULTIPLY 24
-#define OPERATOR_DIVIDE 25
-/*#define OPERATOR_MODULUS 26*/
-#define OPERATOR_INCREMENT 27
-#define OPERATOR_DECREMENT 28
-#define OPERATOR_PLUS 29
-#define OPERATOR_MINUS 30
-/*#define OPERATOR_COMPLEMENT 31*/
-#define OPERATOR_NOT 32
-
-static const struct {
- unsigned int o_code;
- const char *o_name;
+#define OPERATOR_ADDASSIGN 1
+#define OPERATOR_SUBASSIGN 2
+#define OPERATOR_MULASSIGN 3
+#define OPERATOR_DIVASSIGN 4
+/*#define OPERATOR_MODASSIGN 5*/
+/*#define OPERATOR_LSHASSIGN 6*/
+/*#define OPERATOR_RSHASSIGN 7*/
+/*#define OPERATOR_ANDASSIGN 8*/
+/*#define OPERATOR_XORASSIGN 9*/
+/*#define OPERATOR_ORASSIGN 10*/
+#define OPERATOR_LOGICALXOR 11
+/*#define OPERATOR_BITOR 12*/
+/*#define OPERATOR_BITXOR 13*/
+/*#define OPERATOR_BITAND 14*/
+#define OPERATOR_LESS 15
+#define OPERATOR_GREATER 16
+#define OPERATOR_LESSEQUAL 17
+#define OPERATOR_GREATEREQUAL 18
+/*#define OPERATOR_LSHIFT 19*/
+/*#define OPERATOR_RSHIFT 20*/
+#define OPERATOR_MULTIPLY 21
+#define OPERATOR_DIVIDE 22
+/*#define OPERATOR_MODULUS 23*/
+#define OPERATOR_INCREMENT 24
+#define OPERATOR_DECREMENT 25
+#define OPERATOR_PLUS 26
+#define OPERATOR_MINUS 27
+/*#define OPERATOR_COMPLEMENT 28*/
+#define OPERATOR_NOT 29
+
+static const struct
+{
+ unsigned int o_code;
+ const char *o_name;
} operator_names[] = {
- { OPERATOR_INCREMENT, "++" },
- { OPERATOR_ADDASSIGN, "+=" },
- { OPERATOR_PLUS, "+" },
- { OPERATOR_DECREMENT, "--" },
- { OPERATOR_SUBASSIGN, "-=" },
- { OPERATOR_MINUS, "-" },
- { OPERATOR_NOTEQUAL, "!=" },
- { OPERATOR_NOT, "!" },
- { OPERATOR_MULASSIGN, "*=" },
- { OPERATOR_MULTIPLY, "*" },
- { OPERATOR_DIVASSIGN, "/=" },
- { OPERATOR_DIVIDE, "/" },
- { OPERATOR_LESSEQUAL, "<=" },
- /*{ OPERATOR_LSHASSIGN, "<<=" },*/
- /*{ OPERATOR_LSHIFT, "<<" },*/
- { OPERATOR_LESS, "<" },
- { OPERATOR_GREATEREQUAL, ">=" },
- /*{ OPERATOR_RSHASSIGN, ">>=" },*/
- /*{ OPERATOR_RSHIFT, ">>" },*/
- { OPERATOR_GREATER, ">" },
- { OPERATOR_EQUAL, "==" },
- { OPERATOR_ASSIGN, "=" },
- /*{ OPERATOR_MODASSIGN, "%=" },*/
- /*{ OPERATOR_MODULUS, "%" },*/
- /*{ OPERATOR_ANDASSIGN, "&=" },*/
- /*{ OPERATOR_BITAND, "&" },*/
- /*{ OPERATOR_ORASSIGN, "|=" },*/
- /*{ OPERATOR_BITOR, "|" },*/
- /*{ OPERATOR_COMPLEMENT, "~" },*/
- /*{ OPERATOR_XORASSIGN, "^=" },*/
- { OPERATOR_LOGICALXOR, "^^" }/*,*/
- /*{ OPERATOR_BITXOR, "^" }*/
+ {OPERATOR_INCREMENT, "++"},
+ {OPERATOR_ADDASSIGN, "+="},
+ {OPERATOR_PLUS, "+"},
+ {OPERATOR_DECREMENT, "--"},
+ {OPERATOR_SUBASSIGN, "-="},
+ {OPERATOR_MINUS, "-"},
+ {OPERATOR_NOT, "!"},
+ {OPERATOR_MULASSIGN, "*="},
+ {OPERATOR_MULTIPLY, "*"},
+ {OPERATOR_DIVASSIGN, "/="},
+ {OPERATOR_DIVIDE, "/"},
+ {OPERATOR_LESSEQUAL, "<="},
+ /*{ OPERATOR_LSHASSIGN, "<<=" }, */
+ /*{ OPERATOR_LSHIFT, "<<" }, */
+ {OPERATOR_LESS, "<"},
+ {OPERATOR_GREATEREQUAL, ">="},
+ /*{ OPERATOR_RSHASSIGN, ">>=" }, */
+ /*{ OPERATOR_RSHIFT, ">>" }, */
+ {OPERATOR_GREATER, ">"},
+ /*{ OPERATOR_MODASSIGN, "%=" }, */
+ /*{ OPERATOR_MODULUS, "%" }, */
+ /*{ OPERATOR_ANDASSIGN, "&=" }, */
+ /*{ OPERATOR_BITAND, "&" }, */
+ /*{ OPERATOR_ORASSIGN, "|=" }, */
+ /*{ OPERATOR_BITOR, "|" }, */
+ /*{ OPERATOR_COMPLEMENT, "~" }, */
+ /*{ OPERATOR_XORASSIGN, "^=" }, */
+ {OPERATOR_LOGICALXOR, "^^"},
+ /*{ OPERATOR_BITXOR, "^" } */
};
-static int parse_operator_name (slang_parse_ctx *C, char **pname)
-{
- unsigned int i;
- for (i = 0; i < sizeof (operator_names) / sizeof (*operator_names); i++)
- if (operator_names[i].o_code == (unsigned int) (*C->I))
- {
- *pname = slang_string_duplicate (operator_names[i].o_name);
- if (*pname == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- C->I++;
- return 1;
- }
- return 0;
-}
-
-static int parse_function_prototype (slang_parse_ctx *C, slang_function *func,
- slang_struct_scope *structs, slang_variable_scope *scope, slang_function_scope *funcs)
-{
- if (!parse_fully_specified_type (C, &func->header.type, structs, scope, funcs))
- return 0;
- switch (*C->I++)
- {
- case FUNCTION_ORDINARY:
- func->kind = slang_func_ordinary;
- if (!parse_identifier (C, &func->header.name))
- return 0;
- break;
- case FUNCTION_CONSTRUCTOR:
- func->kind = slang_func_constructor;
- if (func->header.type.specifier.type == slang_spec_struct)
- return 0;
- func->header.name = slang_string_duplicate (
- type_specifier_type_names[func->header.type.specifier.type]);
- if (func->header.name == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- break;
- case FUNCTION_OPERATOR:
- func->kind = slang_func_operator;
- if (!parse_operator_name (C, &func->header.name))
- return 0;
- break;
- default:
- return 0;
- }
- func->parameters->outer_scope = scope;
- while (*C->I++ == PARAMETER_NEXT)
- {
- func->parameters->variables = (slang_variable *) slang_alloc_realloc (
- func->parameters->variables,
- func->parameters->num_variables * sizeof (slang_variable),
- (func->parameters->num_variables + 1) * sizeof (slang_variable));
- if (func->parameters->variables == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- slang_variable_construct (func->parameters->variables + func->parameters->num_variables);
- func->parameters->num_variables++;
- if (!parse_parameter_declaration (C, func->parameters->variables +
- func->parameters->num_variables - 1, structs, scope, funcs))
- return 0;
- }
- func->param_count = func->parameters->num_variables;
- return 1;
-}
-
-static int parse_function_definition (slang_parse_ctx *C, slang_function *func,
- slang_struct_scope *structs, slang_variable_scope *scope, slang_function_scope *funcs)
-{
- if (!parse_function_prototype (C, func, structs, scope, funcs))
- return 0;
- func->body = (slang_operation *) slang_alloc_malloc (sizeof (slang_operation));
- if (func->body == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!slang_operation_construct_a (func->body))
- {
- slang_alloc_free (func->body);
- func->body = NULL;
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!parse_statement (C, func->body, func->parameters, structs, funcs))
- return 0;
- return 1;
+static slang_atom
+parse_operator_name(slang_parse_ctx * C)
+{
+ unsigned int i;
+
+ for (i = 0; i < sizeof(operator_names) / sizeof(*operator_names); i++) {
+ if (operator_names[i].o_code == (unsigned int) (*C->I)) {
+ slang_atom atom =
+ slang_atom_pool_atom(C->atoms, operator_names[i].o_name);
+ if (atom == SLANG_ATOM_NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ C->I++;
+ return atom;
+ }
+ }
+ return 0;
+}
+
+static int
+parse_function_prototype(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_function * func)
+{
+ /* parse function type and name */
+ if (!parse_fully_specified_type(C, O, &func->header.type))
+ return 0;
+ switch (*C->I++) {
+ case FUNCTION_ORDINARY:
+ func->kind = slang_func_ordinary;
+ func->header.a_name = parse_identifier(C);
+ if (func->header.a_name == SLANG_ATOM_NULL)
+ return 0;
+ break;
+ case FUNCTION_CONSTRUCTOR:
+ func->kind = slang_func_constructor;
+ if (func->header.type.specifier.type == slang_spec_struct)
+ return 0;
+ func->header.a_name =
+ slang_atom_pool_atom(C->atoms,
+ slang_type_specifier_type_to_string
+ (func->header.type.specifier.type));
+ if (func->header.a_name == SLANG_ATOM_NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ break;
+ case FUNCTION_OPERATOR:
+ func->kind = slang_func_operator;
+ func->header.a_name = parse_operator_name(C);
+ if (func->header.a_name == SLANG_ATOM_NULL)
+ return 0;
+ break;
+ default:
+ return 0;
+ }
+
+ /* parse function parameters */
+ while (*C->I++ == PARAMETER_NEXT) {
+ slang_variable *p = slang_variable_scope_grow(func->parameters);
+ if (!p) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ if (!parse_parameter_declaration(C, O, p))
+ return 0;
+ }
+
+#if 111
+ /* if the function returns a value, append a hidden __retVal 'out'
+ * parameter that corresponds to the return value.
+ */
+ if (_slang_function_has_return_value(func)) {
+ slang_variable *p = slang_variable_scope_grow(func->parameters);
+ slang_atom a_retVal = slang_atom_pool_atom(C->atoms, "__retVal");
+ assert(a_retVal);
+ p->a_name = a_retVal;
+ p->type = func->header.type;
+ p->type.qualifier = slang_qual_out;
+ }
+#endif
+
+ /* function formal parameters and local variables share the same
+ * scope, so save the information about param count in a seperate
+ * place also link the scope to the global variable scope so when a
+ * given identifier is not found here, the search process continues
+ * in the global space
+ */
+ func->param_count = func->parameters->num_variables;
+ func->parameters->outer_scope = O->vars;
+
+ return 1;
+}
+
+static int
+parse_function_definition(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_function * func)
+{
+ slang_output_ctx o = *O;
+
+ if (!parse_function_prototype(C, O, func))
+ return 0;
+
+ /* create function's body operation */
+ func->body =
+ (slang_operation *) slang_alloc_malloc(sizeof(slang_operation));
+ if (func->body == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ if (!slang_operation_construct(func->body)) {
+ slang_alloc_free(func->body);
+ func->body = NULL;
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+
+ /* to parse the body the parse context is modified in order to
+ * capture parsed variables into function's local variable scope
+ */
+ C->global_scope = GL_FALSE;
+ o.vars = func->parameters;
+ if (!parse_statement(C, &o, func->body))
+ return 0;
+
+ C->global_scope = GL_TRUE;
+ return 1;
+}
+
+static GLboolean
+initialize_global(slang_assemble_ctx * A, slang_variable * var)
+{
+#if 01
+ slang_assembly_file_restore_point point;
+#endif
+ slang_machine mach;
+ slang_assembly_local_info save_local = A->local;
+ slang_operation op_id, op_assign;
+ GLboolean result;
+
+#if 01
+ /* save the current assembly */
+ if (!slang_assembly_file_restore_point_save(A->file, &point))
+ return GL_FALSE;
+#endif
+
+ /* setup the machine */
+ mach = *A->mach;
+ mach.ip = A->file->count;
+
+ /* allocate local storage for expression */
+ A->local.ret_size = 0;
+ A->local.addr_tmp = 0;
+ A->local.swizzle_tmp = 4;
+ if (!slang_assembly_file_push_label(A->file, slang_asm_local_alloc, 20))
+ return GL_FALSE;
+ if (!slang_assembly_file_push_label(A->file, slang_asm_enter, 20))
+ return GL_FALSE;
+
+ /* construct the left side of assignment */
+ if (!slang_operation_construct(&op_id))
+ return GL_FALSE;
+ op_id.type = slang_oper_identifier;
+ op_id.a_id = var->a_name;
+
+ /* put the variable into operation's scope */
+ op_id.locals->variables =
+ (slang_variable **) slang_alloc_malloc(sizeof(slang_variable *));
+ if (op_id.locals->variables == NULL) {
+ slang_operation_destruct(&op_id);
+ return GL_FALSE;
+ }
+ op_id.locals->num_variables = 1;
+ op_id.locals->variables[0] = var;
+
+ /* construct the assignment expression */
+ if (!slang_operation_construct(&op_assign)) {
+ op_id.locals->num_variables = 0;
+ slang_operation_destruct(&op_id);
+ return GL_FALSE;
+ }
+ op_assign.type = slang_oper_assign;
+ op_assign.children =
+ (slang_operation *) slang_alloc_malloc(2 * sizeof(slang_operation));
+ if (op_assign.children == NULL) {
+ slang_operation_destruct(&op_assign);
+ op_id.locals->num_variables = 0;
+ slang_operation_destruct(&op_id);
+ return GL_FALSE;
+ }
+ op_assign.num_children = 2;
+ op_assign.children[0] = op_id;
+ op_assign.children[1] = *var->initializer;
+
+#if 0 /* this should go away */
+ /* insert the actual expression */
+ result = _slang_assemble_operation(A, &op_assign, slang_ref_forbid);
+#else
+ result = 1;
+#endif
+
+ /* carefully destroy the operations */
+ op_assign.num_children = 0;
+ slang_alloc_free(op_assign.children);
+ op_assign.children = NULL;
+ slang_operation_destruct(&op_assign);
+ op_id.locals->num_variables = 0;
+ slang_operation_destruct(&op_id);
+
+ if (!result)
+ return GL_FALSE;
+ if (!slang_assembly_file_push(A->file, slang_asm_exit))
+ return GL_FALSE;
+
+ /* execute the expression */
+#if 0
+ if (!_slang_execute2(A->file, &mach))
+ return GL_FALSE;
+#endif
+
+#if 01
+ /* restore the old assembly */
+ if (!slang_assembly_file_restore_point_load(A->file, &point))
+ return GL_FALSE;
+#endif
+ A->local = save_local;
+
+ /* now we copy the contents of the initialized variable back to the original machine */
+ _mesa_memcpy((GLubyte *) A->mach->mem + var->address,
+ (GLubyte *) mach.mem + var->address, var->size);
+
+ return GL_TRUE;
}
/* init declarator list */
#define VARIABLE_ARRAY_EXPLICIT 3
#define VARIABLE_ARRAY_UNKNOWN 4
-static int parse_init_declarator (slang_parse_ctx *C, const slang_fully_specified_type *type,
- slang_variable_scope *vars, slang_struct_scope *structs, slang_function_scope *funcs)
-{
- slang_variable *var;
-
- if (*C->I++ == VARIABLE_NONE)
- return 1;
- vars->variables = (slang_variable *) slang_alloc_realloc (vars->variables,
- vars->num_variables * sizeof (slang_variable),
- (vars->num_variables + 1) * sizeof (slang_variable));
- if (vars->variables == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- var = vars->variables + vars->num_variables;
- vars->num_variables++;
- slang_variable_construct (var);
- var->type.qualifier = type->qualifier;
- if (!parse_identifier (C, &var->name))
- return 0;
- switch (*C->I++)
- {
- case VARIABLE_NONE:
- if (!slang_type_specifier_copy (&var->type.specifier, &type->specifier))
- return 0;
- break;
- case VARIABLE_INITIALIZER:
- if (!slang_type_specifier_copy (&var->type.specifier, &type->specifier))
- return 0;
- var->initializer = (slang_operation *) slang_alloc_malloc (sizeof (slang_operation));
- if (var->initializer == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!slang_operation_construct_a (var->initializer))
- {
- slang_alloc_free (var->initializer);
- var->initializer = NULL;
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!parse_expression (C, var->initializer, vars, structs, funcs))
- return 0;
- break;
- case VARIABLE_ARRAY_UNKNOWN:
- var->type.specifier.type = slang_spec_array;
- var->type.specifier._array = (slang_type_specifier *) slang_alloc_malloc (sizeof (
- slang_type_specifier));
- if (var->type.specifier._array == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- slang_type_specifier_construct (var->type.specifier._array);
- if (!slang_type_specifier_copy (var->type.specifier._array, &type->specifier))
- return 0;
- break;
- case VARIABLE_ARRAY_EXPLICIT:
- var->type.specifier.type = slang_spec_array;
- var->type.specifier._array = (slang_type_specifier *) slang_alloc_malloc (sizeof (
- slang_type_specifier));
- if (var->type.specifier._array == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- slang_type_specifier_construct (var->type.specifier._array);
- if (!slang_type_specifier_copy (var->type.specifier._array, &type->specifier))
- return 0;
- var->array_size = (slang_operation *) slang_alloc_malloc (sizeof (slang_operation));
- if (var->array_size == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!slang_operation_construct_a (var->array_size))
- {
- slang_alloc_free (var->array_size);
- var->array_size = NULL;
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!parse_expression (C, var->array_size, vars, structs, funcs))
- return 0;
- break;
- default:
- return 0;
- }
- if (!(var->type.specifier.type == slang_spec_array && var->array_size == NULL))
- {
- slang_storage_aggregate agg;
-
- slang_storage_aggregate_construct (&agg);
- if (!_slang_aggregate_variable (&agg, &var->type.specifier, var->array_size, funcs,
- structs))
- {
- slang_storage_aggregate_destruct (&agg);
- return 0;
- }
- slang_storage_aggregate_destruct (&agg);
- }
- return 1;
-}
-static int parse_init_declarator_list (slang_parse_ctx *C, slang_variable_scope *vars,
- slang_struct_scope *structs, slang_function_scope *funcs)
-{
- slang_fully_specified_type type;
-
- slang_fully_specified_type_construct (&type);
- if (!parse_fully_specified_type (C, &type, structs, vars, funcs))
- {
- slang_fully_specified_type_destruct (&type);
- return 0;
- }
- do
- {
- if (!parse_init_declarator (C, &type, vars, structs, funcs))
- {
- slang_fully_specified_type_destruct (&type);
- return 0;
- }
- }
- while (*C->I++ == DECLARATOR_NEXT);
- slang_fully_specified_type_destruct (&type);
- return 1;
+/**
+ * Parse the initializer for a variable declaration.
+ */
+static int
+parse_init_declarator(slang_parse_ctx * C, slang_output_ctx * O,
+ const slang_fully_specified_type * type)
+{
+ slang_variable *var;
+
+ /* empty init declatator (without name, e.g. "float ;") */
+ if (*C->I++ == VARIABLE_NONE)
+ return 1;
+
+ /* make room for the new variable and initialize it */
+ var = slang_variable_scope_grow(O->vars);
+ if (!var) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+
+ /* copy the declarator qualifier type, parse the identifier */
+ var->global = C->global_scope;
+ var->type.qualifier = type->qualifier;
+ var->a_name = parse_identifier(C);
+ if (var->a_name == SLANG_ATOM_NULL)
+ return 0;
+
+ switch (*C->I++) {
+ case VARIABLE_NONE:
+ /* simple variable declarator - just copy the specifier */
+ if (!slang_type_specifier_copy(&var->type.specifier, &type->specifier))
+ return 0;
+ break;
+ case VARIABLE_INITIALIZER:
+ /* initialized variable - copy the specifier and parse the expression */
+ if (!slang_type_specifier_copy(&var->type.specifier, &type->specifier))
+ return 0;
+ var->initializer =
+ (slang_operation *) slang_alloc_malloc(sizeof(slang_operation));
+ if (var->initializer == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ if (!slang_operation_construct(var->initializer)) {
+ slang_alloc_free(var->initializer);
+ var->initializer = NULL;
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ if (!parse_expression(C, O, var->initializer))
+ return 0;
+ break;
+#if 0
+ case VARIABLE_ARRAY_UNKNOWN:
+ /* unsized array - mark it as array and copy the specifier to
+ the array element
+ */
+ if (!convert_to_array(C, var, &type->specifier))
+ return GL_FALSE;
+ break;
+#endif
+ case VARIABLE_ARRAY_EXPLICIT:
+ if (!convert_to_array(C, var, &type->specifier))
+ return GL_FALSE;
+ if (!parse_array_len(C, O, &var->array_len))
+ return GL_FALSE;
+ break;
+ default:
+ return 0;
+ }
+
+#if 1
+ if (C->global_scope) {
+ slang_assemble_ctx A;
+
+ A.file = O->assembly;
+ A.mach = O->machine;
+ A.atoms = C->atoms;
+ A.space.funcs = O->funs;
+ A.space.structs = O->structs;
+ A.space.vars = O->vars;
+ A.program = O->program;
+#if 0
+ A.codegen = O->codegen;
+#endif
+ A.vartable = O->vartable;
+
+ _slang_codegen_global_variable(&A, var, C->type);
+ }
+#endif
+
+ /* allocate global address space for a variable with a known size */
+ if (C->global_scope
+ && !(var->type.specifier.type == slang_spec_array
+ && var->array_len == 0)) {
+ if (!calculate_var_size(C, O, var))
+ return GL_FALSE;
+ var->address = slang_var_pool_alloc(O->global_pool, var->size);
+ }
+
+ /* initialize global variable */
+ if (C->global_scope) {
+ if (var->initializer != NULL) {
+ slang_assemble_ctx A;
+
+ A.file = O->assembly;
+ A.mach = O->machine;
+ A.atoms = C->atoms;
+ A.space.funcs = O->funs;
+ A.space.structs = O->structs;
+ A.space.vars = O->vars;
+ if (!initialize_global(&A, var))
+ return 0;
+ }
+ else {
+ _mesa_memset((GLubyte *) (O->machine->mem) + var->address, 0,
+ var->size);
+ }
+ }
+ return 1;
}
-static int parse_function (slang_parse_ctx *C, int definition, slang_struct_scope *structs,
- slang_function_scope *funcs, slang_variable_scope *scope, slang_function **parsed_func_ret)
+/**
+ * Parse a list of variable declarations. Each variable may have an
+ * initializer.
+ */
+static int
+parse_init_declarator_list(slang_parse_ctx * C, slang_output_ctx * O)
{
- slang_function parsed_func, *found_func;
-
- /* parse function definition/declaration */
- slang_function_construct (&parsed_func);
- if (definition)
- {
- if (!parse_function_definition (C, &parsed_func, structs, scope, funcs))
- {
- slang_function_destruct (&parsed_func);
- return 0;
- }
- }
- else
- {
- if (!parse_function_prototype (C, &parsed_func, structs, scope, funcs))
- {
- slang_function_destruct (&parsed_func);
- return 0;
- }
- }
-
- /* find a function with a prototype matching the parsed one - only the current scope
- is being searched to allow built-in function overriding */
- found_func = slang_function_scope_find (funcs, &parsed_func, 0);
- if (found_func == NULL)
- {
- /* add the parsed function to the function list */
- funcs->functions = (slang_function *) slang_alloc_realloc (funcs->functions,
- funcs->num_functions * sizeof (slang_function), (funcs->num_functions + 1) * sizeof (
- slang_function));
- if (funcs->functions == NULL)
- {
- slang_info_log_memory (C->L);
- slang_function_destruct (&parsed_func);
- return 0;
- }
- funcs->functions[funcs->num_functions] = parsed_func;
- funcs->num_functions++;
-
- /* return the newly parsed function */
- *parsed_func_ret = funcs->functions + funcs->num_functions - 1;
- }
- else
- {
- /* TODO: check function return type qualifiers and specifiers */
- if (definition)
- {
- /* destroy the existing function declaration and replace it with the new one */
- if (found_func->body != NULL)
- {
- slang_info_log_error (C->L, "%s: function already has a body",
- parsed_func.header.name);
- slang_function_destruct (&parsed_func);
- return 0;
- }
- slang_function_destruct (found_func);
- *found_func = parsed_func;
- }
- else
- {
- /* another declaration of the same function prototype - ignore it */
- slang_function_destruct (&parsed_func);
- }
-
- /* return the found function */
- *parsed_func_ret = found_func;
- }
-
- /* assemble the parsed function */
- if (definition)
- {
-static int x = 0;
-static
- slang_assembly_file file;
- slang_assembly_name_space space;
-x++;
-if (x == 1)
- slang_assembly_file_construct (&file);
- space.funcs = funcs;
- space.structs = structs;
- space.vars = scope;
-if (x == 1)
-xxx_first (&file);\r
- (**parsed_func_ret).address = file.count;
- if (!_slang_assemble_function (&file, *parsed_func_ret, &space))
- {
- slang_assembly_file_destruct (&file);
- return 0;
- }
-if (slang_string_compare ("main", (**parsed_func_ret).header.name) == 0)
-{\r
-xxx_prolog (&file, (**parsed_func_ret).address);
-_slang_execute (&file);
-slang_assembly_file_destruct (&file);
-exit (0);
+ slang_fully_specified_type type;
+
+ /* parse the fully specified type, common to all declarators */
+ if (!slang_fully_specified_type_construct(&type))
+ return 0;
+ if (!parse_fully_specified_type(C, O, &type)) {
+ slang_fully_specified_type_destruct(&type);
+ return 0;
+ }
+
+ /* parse declarators, pass-in the parsed type */
+ do {
+ if (!parse_init_declarator(C, O, &type)) {
+ slang_fully_specified_type_destruct(&type);
+ return 0;
+ }
+ }
+ while (*C->I++ == DECLARATOR_NEXT);
+
+ slang_fully_specified_type_destruct(&type);
+ return 1;
}
- }
- return 1;
+
+
+/**
+ * Parse a function definition or declaration.
+ * \param C parsing context
+ * \param O output context
+ * \param definition if non-zero expect a definition, else a declaration
+ * \param parsed_func_ret returns the parsed function
+ * \return GL_TRUE if success, GL_FALSE if failure
+ */
+static GLboolean
+parse_function(slang_parse_ctx * C, slang_output_ctx * O, int definition,
+ slang_function ** parsed_func_ret)
+{
+ slang_function parsed_func, *found_func;
+
+ /* parse function definition/declaration */
+ if (!slang_function_construct(&parsed_func))
+ return GL_FALSE;
+ if (definition) {
+ if (!parse_function_definition(C, O, &parsed_func)) {
+ slang_function_destruct(&parsed_func);
+ return GL_FALSE;
+ }
+ }
+ else {
+ if (!parse_function_prototype(C, O, &parsed_func)) {
+ slang_function_destruct(&parsed_func);
+ return GL_FALSE;
+ }
+ }
+
+ /* find a function with a prototype matching the parsed one - only
+ * the current scope is being searched to allow built-in function
+ * overriding
+ */
+ found_func = slang_function_scope_find(O->funs, &parsed_func, 0);
+ if (found_func == NULL) {
+ /* New function, add it to the function list */
+ O->funs->functions =
+ (slang_function *) slang_alloc_realloc(O->funs->functions,
+ O->funs->num_functions *
+ sizeof(slang_function),
+ (O->funs->num_functions +
+ 1) * sizeof(slang_function));
+ if (O->funs->functions == NULL) {
+ slang_info_log_memory(C->L);
+ slang_function_destruct(&parsed_func);
+ return GL_FALSE;
+ }
+ O->funs->functions[O->funs->num_functions] = parsed_func;
+ O->funs->num_functions++;
+
+ /* return the newly parsed function */
+ *parsed_func_ret = &O->funs->functions[O->funs->num_functions - 1];
+ }
+ else {
+ /* previously defined or declared */
+ /* TODO: check function return type qualifiers and specifiers */
+ if (definition) {
+ if (found_func->body != NULL) {
+ slang_info_log_error(C->L, "%s: function already has a body.",
+ slang_atom_pool_id(C->atoms,
+ parsed_func.header.
+ a_name));
+ slang_function_destruct(&parsed_func);
+ return GL_FALSE;
+ }
+
+ /* destroy the existing function declaration and replace it
+ * with the new one, remember to save the fixup table
+ */
+ parsed_func.fixups = found_func->fixups;
+ slang_fixup_table_init(&found_func->fixups);
+ slang_function_destruct(found_func);
+ *found_func = parsed_func;
+ }
+ else {
+ /* another declaration of the same function prototype - ignore it */
+ slang_function_destruct(&parsed_func);
+ }
+
+ /* return the found function */
+ *parsed_func_ret = found_func;
+ }
+
+ /* assemble the parsed function */
+ {
+ slang_assemble_ctx A;
+
+ A.file = O->assembly;
+ A.mach = O->machine;
+ A.atoms = C->atoms;
+ A.space.funcs = O->funs;
+ A.space.structs = O->structs;
+ A.space.vars = O->vars;
+ A.program = O->program;
+#if 0
+ A.codegen = O->codegen;
+#endif
+ A.vartable = O->vartable;
+
+ _slang_reset_error();
+
+#if 0
+ printf("*************** Assemble function %s ****\n", (char *) (*parsed_func_ret)->header.a_name);
+ slang_print_var_scope((*parsed_func_ret)->parameters,
+ (*parsed_func_ret)->param_count);
+#endif
+
+#if 0
+ if (!_slang_assemble_function(&A, *parsed_func_ret)) {
+ /* propogate the error message back through the info log */
+ C->L->text = _mesa_strdup(_slang_error_text());
+ C->L->dont_free_text = GL_FALSE;
+ return GL_FALSE;
+ }
+#endif
+
+#if 0
+ printf("**************************************\n");
+#endif
+#if 1
+ _slang_codegen_function(&A, *parsed_func_ret);
+#endif
+ }
+ return GL_TRUE;
}
/* declaration */
#define DECLARATION_FUNCTION_PROTOTYPE 1
#define DECLARATION_INIT_DECLARATOR_LIST 2
-static int parse_declaration (slang_parse_ctx *C, slang_variable_scope *scope,
- slang_struct_scope *structs, slang_function_scope *funcs)
+static int
+parse_declaration(slang_parse_ctx * C, slang_output_ctx * O)
{
- slang_function *dummy_func;
-
- switch (*C->I++)
- {
- case DECLARATION_INIT_DECLARATOR_LIST:
- if (!parse_init_declarator_list (C, scope, structs, funcs))
- return 0;
- break;
- case DECLARATION_FUNCTION_PROTOTYPE:
- if (!parse_function (C, 0, structs, funcs, scope, &dummy_func))
- return 0;
- break;
- default:
- return 0;
- }
- return 1;
+ switch (*C->I++) {
+ case DECLARATION_INIT_DECLARATOR_LIST:
+ if (!parse_init_declarator_list(C, O))
+ return 0;
+ break;
+ case DECLARATION_FUNCTION_PROTOTYPE:
+ {
+ slang_function *dummy_func;
+
+ if (!parse_function(C, O, 0, &dummy_func))
+ return 0;
+ }
+ break;
+ default:
+ return 0;
+ }
+ return 1;
}
/* external declaration */
#define EXTERNAL_FUNCTION_DEFINITION 1
#define EXTERNAL_DECLARATION 2
-static int parse_translation_unit (slang_parse_ctx *C, slang_translation_unit *unit)
-{
- while (*C->I != EXTERNAL_NULL)
- {
- slang_function *func;
-
- switch (*C->I++)
- {
- case EXTERNAL_FUNCTION_DEFINITION:
- if (!parse_function (C, 1, &unit->structs, &unit->functions, &unit->globals, &func))
- return 0;
- break;
- case EXTERNAL_DECLARATION:
- if (!parse_declaration (C, &unit->globals, &unit->structs, &unit->functions))
- return 0;
- break;
- default:
- return 0;
- }
- }
- C->I++;
- return 1;
-}
+static GLboolean
+parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit,
+ struct gl_program *program)
+{
+ slang_output_ctx o;
+ GLboolean success;
+
+ /* setup output context */
+ o.funs = &unit->funs;
+ o.structs = &unit->structs;
+ o.vars = &unit->vars;
+ o.assembly = &unit->object->assembly;
+ o.global_pool = &unit->object->varpool;
+ o.machine = &unit->object->machine;
+ o.program = program;
+ o.vartable = _slang_push_var_table(NULL);
+
+ /* parse individual functions and declarations */
+ while (*C->I != EXTERNAL_NULL) {
+ switch (*C->I++) {
+ case EXTERNAL_FUNCTION_DEFINITION:
+ {
+ slang_function *func;
+ success = parse_function(C, &o, 1, &func);
+ }
+ break;
+ case EXTERNAL_DECLARATION:
+ success = parse_declaration(C, &o);
+ break;
+ default:
+ success = GL_FALSE;
+ }
+
+ if (!success) {
+ /* xxx free codegen */
+ _slang_pop_var_table(o.vartable);
+ return GL_FALSE;
+ }
+ }
+ C->I++;
+
+ _slang_pop_var_table(o.vartable);
+ return GL_TRUE;
+}
+
+static GLboolean
+compile_binary(const byte * prod, slang_code_unit * unit,
+ slang_unit_type type, slang_info_log * infolog,
+ slang_code_unit * builtin, slang_code_unit * downlink,
+ struct gl_program *program)
+{
+ slang_parse_ctx C;
+
+ unit->type = type;
+
+ /* setup parse context */
+ C.I = prod;
+ C.L = infolog;
+ C.parsing_builtin = (builtin == NULL);
+ C.global_scope = GL_TRUE;
+ C.atoms = &unit->object->atompool;
+ C.type = type;
+
+ if (!check_revision(&C))
+ return GL_FALSE;
+
+ if (downlink != NULL) {
+ unit->vars.outer_scope = &downlink->vars;
+ unit->funs.outer_scope = &downlink->funs;
+ unit->structs.outer_scope = &downlink->structs;
+ }
+
+ /* parse translation unit */
+ return parse_code_unit(&C, unit, program);
+}
+
+static GLboolean
+compile_with_grammar(grammar id, const char *source, slang_code_unit * unit,
+ slang_unit_type type, slang_info_log * infolog,
+ slang_code_unit * builtin,
+ struct gl_program *program)
+{
+ byte *prod;
+ GLuint size, start, version;
+ slang_string preprocessed;
+
+ /* First retrieve the version number. */
+ if (!_slang_preprocess_version(source, &version, &start, infolog))
+ return GL_FALSE;
+
+ if (version > 110) {
+ slang_info_log_error(infolog,
+ "language version specified is not supported.");
+ return GL_FALSE;
+ }
+
+ /* Now preprocess the source string. */
+ slang_string_init(&preprocessed);
+ if (!_slang_preprocess_directives(&preprocessed, &source[start], infolog)) {
+ slang_string_free(&preprocessed);
+ slang_info_log_error(infolog, "failed to preprocess the source.");
+ return GL_FALSE;
+ }
+
+ /* Finally check the syntax and generate its binary representation. */
+ if (!grammar_fast_check(id,
+ (const byte *) (slang_string_cstr(&preprocessed)),
+ &prod, &size,
+ 65536)) {
+ char buf[1024];
+ GLint pos;
+
+ slang_string_free(&preprocessed);
+ grammar_get_last_error((byte *) (buf), sizeof(buf), &pos);
+ slang_info_log_error(infolog, buf);
+ RETURN_ERROR("syntax error (possibly in library code)", 0);
+ }
+ slang_string_free(&preprocessed);
+
+ /* Syntax is okay - translate it to internal representation. */
+ if (!compile_binary(prod, unit, type, infolog, builtin,
+ &builtin[SLANG_BUILTIN_TOTAL - 1],
+ program)) {
+ grammar_alloc_free(prod);
+ return GL_FALSE;
+ }
+ grammar_alloc_free(prod);
+ return GL_TRUE;
+}
+
+LONGSTRING static const char *slang_shader_syn =
+#include "library/slang_shader_syn.h"
+ ;
-static int compile_binary (const byte *prod, slang_translation_unit *unit, slang_unit_type type,
- slang_info_log *log, slang_translation_unit *builtins)
-{
- slang_parse_ctx C;
-
- /* set-up parse context */
- C.I = prod;
- C.L = log;
- C.parsing_builtin = builtins == NULL;
-
- if (!check_revision (&C))
- return 0;
-
- /* create translation unit object */
- slang_translation_unit_construct (unit);
- unit->type = type;
-
- if (builtins != NULL)
- {
- /* link to built-in functions */
- builtins[1].functions.outer_scope = &builtins[0].functions;
- builtins[2].functions.outer_scope = &builtins[1].functions;
- unit->functions.outer_scope = &builtins[2].functions;
-
- /* link to built-in variables - core unit does not define any */
- builtins[2].globals.outer_scope = &builtins[1].globals;
- unit->globals.outer_scope = &builtins[2].globals;
-
- /* link to built-in structure typedefs - only in common unit */
- unit->structs.outer_scope = &builtins[1].structs;
- }
-
- /* parse translation unit */
- if (!parse_translation_unit (&C, unit))
- {
- slang_translation_unit_destruct (unit);
- return 0;
- }
-
- return 1;
-}
+static const byte slang_core_gc[] = {
+#include "library/slang_core_gc.h"
+};
-static int compile_with_grammar (grammar id, const char *source, slang_translation_unit *unit,
- slang_unit_type type, slang_info_log *log, slang_translation_unit *builtins)
-{
- byte *prod;
- unsigned int size, start, version;
-
- /* retrieve version */
- if (!_slang_preprocess_version (source, &version, &start, log))
- return 0;
-
- /* check the syntax */
- if (!grammar_fast_check (id, (const byte *) source + start, &prod, &size, 65536))
- {
- char buf[1024];
- unsigned int pos;
- grammar_get_last_error ( (unsigned char*) buf, 1024, (int*) &pos);
- slang_info_log_error (log, buf);
- return 0;
- }
-
- if (!compile_binary (prod, unit, type, log, builtins))
- {
- grammar_alloc_free (prod);
- return 0;
- }
-
- grammar_alloc_free (prod);
- return 1;
-}
+static const byte slang_common_builtin_gc[] = {
+#include "library/slang_common_builtin_gc.h"
+};
-static const char *slang_shader_syn =
-#include "library/slang_shader_syn.h"
-;
-/*
-static const byte slang_core_gc_bin[] = {
-#include "library/slang_core_gc_bin.h"
-};*/
-static const byte slang_core_gc[] = {\r
-#include "library/slang_core_gc.h"\r
-};\r
-
-static const byte slang_common_builtin_gc_bin[] = {
-#include "library/slang_common_builtin_gc_bin.h"
+static const byte slang_fragment_builtin_gc[] = {
+#include "library/slang_fragment_builtin_gc.h"
};
-static const byte slang_fragment_builtin_gc_bin[] = {
-#include "library/slang_fragment_builtin_gc_bin.h"
+static const byte slang_vertex_builtin_gc[] = {
+#include "library/slang_vertex_builtin_gc.h"
};
-static const byte slang_vertex_builtin_gc_bin[] = {
-#include "library/slang_vertex_builtin_gc_bin.h"
+#if defined(USE_X86_ASM) || defined(SLANG_X86)
+foo
+static const byte slang_builtin_vec4_gc[] = {
+#include "library/slang_builtin_vec4_gc.h"
};
-\r
-int _slang_compile (const char *source, slang_translation_unit *unit, slang_unit_type type,
- slang_info_log *log)
-{
- grammar id;
- slang_translation_unit builtin_units[3];
- slang_translation_unit *builtins = NULL;
-
- /* load slang grammar */
- id = grammar_load_from_text ((const byte *) slang_shader_syn);
- if (id == 0)
- {
- char buf[1024];
- unsigned int pos;
- grammar_get_last_error ( (unsigned char*) buf, 1024, (int*) &pos);
- slang_info_log_error (log, buf);
- return 0;
- }
-
- /* set shader type - the syntax is slightly different for different shaders */
- if (type == slang_unit_fragment_shader || type == slang_unit_fragment_builtin)
- grammar_set_reg8 (id, (const byte *) "shader_type", 1);
- else
- grammar_set_reg8 (id, (const byte *) "shader_type", 2);
-
- /* enable language extensions */
- grammar_set_reg8 (id, (const byte *) "parsing_builtin", 1);
-
- /* if parsing user-specified shader, load built-in library */
- if (type == slang_unit_fragment_shader || type == slang_unit_vertex_shader)
- {
- /*if (!compile_binary (slang_core_gc_bin, builtin_units,
- slang_unit_fragment_builtin, log, NULL))*/\r
- if (!compile_with_grammar (id, slang_core_gc, builtin_units, slang_unit_fragment_builtin,\r
- log, NULL))
- {
- grammar_destroy (id);
- return 0;
- }
- if (!compile_binary (slang_common_builtin_gc_bin, builtin_units + 1,
- slang_unit_fragment_builtin, log, NULL))
- {
- slang_translation_unit_destruct (builtin_units);
- grammar_destroy (id);
- return 0;
- }
- if (type == slang_unit_fragment_shader)
- {
- if (!compile_binary (slang_fragment_builtin_gc_bin, builtin_units + 2,
- slang_unit_fragment_builtin, log, NULL))\r
- {
- slang_translation_unit_destruct (builtin_units);
- slang_translation_unit_destruct (builtin_units + 1);
- grammar_destroy (id);
- return 0;
- }
- }
- else if (type == slang_unit_vertex_shader)
- {
- if (!compile_binary (slang_vertex_builtin_gc_bin, builtin_units + 2,
- slang_unit_vertex_builtin, log, NULL))\r
- {
- slang_translation_unit_destruct (builtin_units);
- slang_translation_unit_destruct (builtin_units + 1);
- grammar_destroy (id);
- return 0;
- }
- }
-
- /* disable language extensions */
- grammar_set_reg8 (id, (const byte *) "parsing_builtin", 0);
- builtins = builtin_units;
- }
-
- /* compile the actual shader - pass-in built-in library for external shader */
- if (!compile_with_grammar (id, source, unit, type, log, builtins))
- {
- if (type == slang_unit_fragment_shader || type == slang_unit_vertex_shader)
- {
- slang_translation_unit_destruct (builtin_units);
- slang_translation_unit_destruct (builtin_units + 1);
- slang_translation_unit_destruct (builtin_units + 2);
- }
- grammar_destroy (id);
- return 0;
- }
-
- /* destroy built-in library */
- if (type == slang_unit_fragment_shader || type == slang_unit_vertex_shader)
- {
- slang_translation_unit_destruct (builtin_units);
- slang_translation_unit_destruct (builtin_units + 1);
- slang_translation_unit_destruct (builtin_units + 2);
- }
- grammar_destroy (id);
- return 1;
+#endif
+
+static GLboolean
+compile_object(grammar * id, const char *source, slang_code_object * object,
+ slang_unit_type type, slang_info_log * infolog,
+ struct gl_program *program)
+{
+ slang_code_unit *builtins = NULL;
+
+ /* load GLSL grammar */
+ *id = grammar_load_from_text((const byte *) (slang_shader_syn));
+ if (*id == 0) {
+ byte buf[1024];
+ int pos;
+
+ grammar_get_last_error(buf, 1024, &pos);
+ slang_info_log_error(infolog, (const char *) (buf));
+ return GL_FALSE;
+ }
+
+ /* set shader type - the syntax is slightly different for different shaders */
+ if (type == slang_unit_fragment_shader
+ || type == slang_unit_fragment_builtin)
+ grammar_set_reg8(*id, (const byte *) "shader_type", 1);
+ else
+ grammar_set_reg8(*id, (const byte *) "shader_type", 2);
+
+ /* enable language extensions */
+ grammar_set_reg8(*id, (const byte *) "parsing_builtin", 1);
+
+ /* if parsing user-specified shader, load built-in library */
+ if (type == slang_unit_fragment_shader || type == slang_unit_vertex_shader) {
+ /* compile core functionality first */
+ if (!compile_binary(slang_core_gc,
+ &object->builtin[SLANG_BUILTIN_CORE],
+ slang_unit_fragment_builtin, infolog,
+ NULL, NULL, NULL))
+ return GL_FALSE;
+
+ /* compile common functions and variables, link to core */
+ if (!compile_binary(slang_common_builtin_gc,
+ &object->builtin[SLANG_BUILTIN_COMMON],
+ slang_unit_fragment_builtin, infolog, NULL,
+ &object->builtin[SLANG_BUILTIN_CORE], NULL))
+ return GL_FALSE;
+
+ /* compile target-specific functions and variables, link to common */
+ if (type == slang_unit_fragment_shader) {
+ if (!compile_binary(slang_fragment_builtin_gc,
+ &object->builtin[SLANG_BUILTIN_TARGET],
+ slang_unit_fragment_builtin, infolog, NULL,
+ &object->builtin[SLANG_BUILTIN_COMMON], NULL))
+ return GL_FALSE;
+ }
+ else if (type == slang_unit_vertex_shader) {
+ if (!compile_binary(slang_vertex_builtin_gc,
+ &object->builtin[SLANG_BUILTIN_TARGET],
+ slang_unit_vertex_builtin, infolog, NULL,
+ &object->builtin[SLANG_BUILTIN_COMMON], NULL))
+ return GL_FALSE;
+ }
+
+#if defined(USE_X86_ASM) || defined(SLANG_X86)
+ /* compile x86 4-component vector overrides, link to target */
+ if (!compile_binary(slang_builtin_vec4_gc,
+ &object->builtin[SLANG_BUILTIN_VEC4],
+ slang_unit_fragment_builtin, infolog, NULL,
+ &object->builtin[SLANG_BUILTIN_TARGET]))
+ return GL_FALSE;
+#endif
+
+ /* disable language extensions */
+#if NEW_SLANG /* allow-built-ins */
+ grammar_set_reg8(*id, (const byte *) "parsing_builtin", 1);
+#else
+ grammar_set_reg8(*id, (const byte *) "parsing_builtin", 0);
+#endif
+ builtins = object->builtin;
+ }
+
+ /* compile the actual shader - pass-in built-in library for external shader */
+ return compile_with_grammar(*id, source, &object->unit, type, infolog,
+ builtins, program);
+}
+
+
+#if 0
+static void
+slang_create_uniforms(const slang_export_data_table *exports,
+ struct gl_program *program)
+{
+ /* XXX only add uniforms that are actually going to get used */
+ GLuint i;
+ for (i = 0; i < exports->count; i++) {
+ if (exports->entries[i].access == slang_exp_uniform) {
+ const char *name = (char *) exports->entries[i].quant.name;
+ GLint j = _mesa_add_uniform(program->Parameters, name, 4);
+ assert(j >= 0);
+ }
+ }
+}
+#endif
+
+
+static GLboolean
+compile_shader(GLcontext *ctx, slang_code_object * object,
+ slang_unit_type type, slang_info_log * infolog,
+ struct gl_shader *shader)
+{
+ struct gl_program *program = shader->Programs[0];
+ GLboolean success;
+ grammar id = 0;
+
+ assert(program);
+
+ _slang_code_object_dtr(object);
+ _slang_code_object_ctr(object);
+
+ success = compile_object(&id, shader->Source, object, type, infolog, program);
+ if (id != 0)
+ grammar_destroy(id);
+ if (!success)
+ return GL_FALSE;
+
+ if (!_slang_build_export_data_table(&object->expdata, &object->unit.vars))
+ return GL_FALSE;
+ if (!_slang_build_export_code_table(&object->expcode, &object->unit.funs,
+ &object->unit))
+ return GL_FALSE;
+
+#if NEW_SLANG
+ {
+ slang_create_uniforms(&object->expdata, shader);
+ _mesa_print_program(program);
+ _mesa_print_program_parameters(ctx, program);
+ }
+#endif
+
+ return GL_TRUE;
+}
+
+
+
+GLboolean
+_slang_compile(GLcontext *ctx, struct gl_shader *shader)
+{
+ GLboolean success;
+ slang_info_log info_log;
+ slang_code_object obj;
+ slang_unit_type type;
+
+ if (shader->Type == GL_VERTEX_SHADER) {
+ type = slang_unit_vertex_shader;
+ }
+ else {
+ assert(shader->Type == GL_FRAGMENT_SHADER);
+ type = slang_unit_fragment_shader;
+ }
+
+ /* XXX temporary hack */
+ if (!shader->Programs) {
+ GLenum progTarget;
+ if (shader->Type == GL_VERTEX_SHADER)
+ progTarget = GL_VERTEX_PROGRAM_ARB;
+ else
+ progTarget = GL_FRAGMENT_PROGRAM_ARB;
+ shader->Programs
+ = (struct gl_program **) malloc(sizeof(struct gl_program*));
+ shader->Programs[0] = _mesa_new_program(ctx, progTarget, 1);
+ shader->NumPrograms = 1;
+
+ shader->Programs[0]->Parameters = _mesa_new_parameter_list();
+ shader->Programs[0]->Varying = _mesa_new_parameter_list();
+ shader->Programs[0]->Attributes = _mesa_new_parameter_list();
+ }
+
+ slang_info_log_construct(&info_log);
+ _slang_code_object_ctr(&obj);
+
+ success = compile_shader(ctx, &obj, type, &info_log, shader);
+
+ if (success) {
+#if 0
+ slang_create_uniforms(&object->expdata, shader);
+ _mesa_print_program(program);
+ _mesa_print_program_parameters(ctx, program);
+#endif
+ }
+ else {
+ /* XXX more work on info log needed here */
+ if (info_log.text) {
+ if (shader->InfoLog) {
+ free(shader->InfoLog);
+ shader->InfoLog = NULL;
+ }
+ shader->InfoLog = strdup(info_log.text);
+ }
+ }
+
+ slang_info_log_destruct(&info_log);
+ _slang_code_object_dtr(&obj);
+
+ return success;
}
projects / mesa.git / blobdiff